All language subtitles for Ancient Aliens (2010) 17x02 - Top Ten Mysterious Sites (English)

An island of giant statues.

A vast plateau covered
in enormous geoglyphs.

A megalithic settlement

that dates back
more than 12,000 years.

On Ancient Aliens,

we've trekked across deserts,

hacked through jungles,

flown to remote islands,

and climbed
rugged mountains

in order to investigate
extraordinary sites

that seem to defy
any conventional explanation.

We're going to look back
at what I consider

to be the top ten ancient sites
we've visited.

And you can decide for yourself,

do these places hold the proof
that Earth has been visited

by extraterrestrials?

ANCIENT ALIENS
Season 17 Episode 02

Episode Title:
"The Top Ten Mysterious Sites"

When I think
of all the mysterious sites

we've investigated
on Ancient Aliens,

it's really tough to narrow them
down to the top ten

and even tougher to rank them.

Each of these sites offers
compelling evidence

that extraterrestrials
visited our ancestors.

And at one particular site
in Peru,

that evidence is imprinted right
on the vast desert floor.

And what makes it
even more incredible

is that you can only see it
from high above the Earth.

At number ten on my list
of top ten mysterious sites,

the Nazca Lines.

Southern Peru. 1927.

While hiking in the foothills
of the arid Nazca Desert,

archaeologist
Toribio Mej�a Xesspe

discovers what appears to be
a large network of ancient roads

carved into the earth.

Years later,
as airplane travel to the region

becomes more frequent,

aerial flyovers reveal
nearly 100 other designs

in the nearby landscape.

The Nazca Lines consist

of these massive drawings

or carvings, if you like,
on the ground.

Everything
from geometric symbols, lines

to animals, even fish, birds.

But the intriguing thing
about them is, you know,

that, number one,
they're massive.

And they can really only be seen
properly from the sky.

According to
mainstream archaeologists,

these mysterious earth drawings
were created by the Nazca,

an ancient people
that flourished in the region

between the first century
and eighth century AD.

But what was their purpose?

Archaeology has still no answer.

In my opinion,

it has something to do
with the extraterrestrials.

Our ancestor made these
gigantic signs in the ground

because they want to signalize
to the beings up there,

"We are here. Come down here."

If you leave Nazca
and travel due west

some 2,400 miles out
into the Pacific Ocean,

you'll eventually reach one

of the most remote islands
on Earth.

It was discovered by
Dutch explorer Jacob Roggeveen

on Easter Sunday, 1722,

and he was amazed
by the gigantic stone statues

he found all over the island.

They've become one of
archaeology's greatest riddles.

Mysterious site number nine,
Easter Island.

April 5, 1722.

Dutch explorer Jacob Roggeveen
and his crew

are 2,400 miles
off the coast of Chile

when they spot a small landmass
completely isolated

in the Pacific Ocean.

As they draw closer,

they are surprised to find

that the remote island
is inhabited.

But even more unexpected

are the giant stone figures

staring out at them
from the shore.

The statues on
Easter Island, which we call moai,

are one of the great
archaeological wonders

of the world.

We know they carved

something like
a thousand of them

over a period of probably
roughly about 500 years,

weighing tens of tons.

No other culture in the world
has ever done this,

certainly not on this scale.

In many ways, we still don't
know exactly how they did it.

The moai were
found to have been carved

from the volcanic bedrock
at the center of the island.

But exactly how the native
people managed to move

such enormous statues out
to Easter Island's shoreline,

in some cases more
than 11 miles from the quarry,

has been the subject
of endless debate.

There have been many theories
over the years

as to how they were moved.

The first theory is thought

that they must have been
dragged horizontally

on sledges or rollers
or something of that kind.

It was tried again recently
for a TV film,

and, again,
they moved it a few meters,

but it really doesn't prove
anything.

You're talking
about several hundred statues.

And it would depend on the size
and weight of the statue,

the number of people
you had available to help,

the distance
you were going to go,

the kind of terrain.

So, basically,
we don't really know.

According with the oral
tradition and the legends...

So one has to
wonder if mana was some type

of extraterrestrial technology

that allowed these stones

to be levitated into place.

Some have suggested
that sound technology was used

in order to move
some of these rocks.

Because scientists have proposed
that levitation technology

can be achieved with one thing,

sound frequencies.

This mana is an energy
that no one understands today.

Is it some kind
of extraterrestrial energy?

We just don't know.

You know, what's really curious
is that so many

of the world's most massive
megaliths are found on islands,

where, in ancient times,

resources and manpower
were extremely limited.

And on one island nation in the
middle of the Mediterranean Sea,

you'll find some of the oldest

and most enormous structures
anywhere on Earth.

Number eight in our countdown
of mysterious sites,

the islands of Malta.

The Maltese islands lie
in the center of the Mediterranean Sea,

just south of Italy.

Scholars believe the first
inhabitants migrated here

from the nearby island of Sicily
in 5200 BC.

Today, stone structures
on two of the islands,

Malta and Gozo, are considered
by archaeologists

to be among
the greatest achievements

by ancient builders
anywhere in the world.

There are engineering features
in these temples

that are just astonishing.

We're talking about walls
enclosing space,

paved walkways.

They were ceilinged at one time.

Definitely much more complex
than anything else

that was appearing on Earth
for a very long time.

In 2014, Giorgio Tsoukalos
traveled to Malta

to get an up close look

at its incredible
megalithic structures.

At the temple of Hagar Qim,

he met with Dr. Anthony Bonanno,

a professor of archaeology
and classical literature.

- What does "Hagar Qim" actually mean?
- So... Oh, well,

"stones of worship"
or "standing stones."

- Like this one.
- There you are, yes.

- That's right.
- Check this out. This is huge.

- Wow.
- Yes, uh, three meters high

by six meters, 50 wide

and about another meter thick.

That makes about 20-odd tons.

- Minimum?
- Minimum, yes.

- That's right.
- This is incredible.

So, this is one of the largest

- freestanding stones?
- It is.

I mean, you know,
when I see stuff like this,

- that's when I wonder, you know, how...
- Yeah, h-how did they carry it?

- Was...
- How did they...

They quarried it, in this case.

- Yes, they must have quarried it.
- And put upright.

And then put it upright, yes.

While visitors to
these islands are immediately struck

by the massive megaliths,

one of Malta's most incredible
structures remained hidden

for centuries.

In 1902,

construction workers
accidentally discovered

one of Malta's
most curious features,

a mysterious underground
sanctuary dating to 2500 BC.

Called the Hypogeum,

the subterranean structure

was revealed
to be three levels deep,

all hewn from solid stone.

How could
people from that far back,

how could they know
how to construct such a thing?

But if you look
at some of the chambers,

it looks like
it's actually been carved

with some type of a laser.

So I don't... I don't know
exactly how it was done,

but I do know
that they had a technology

that far exceeds what we have
today as far as stonecutting.

If you look at the way
some of these walls have been cut,

there had to have been
a type of plan

or construction plan beforehand.

And one has to wonder
if that engineering knowledge

was imparted upon the builders,

which were our ancestors,
by extraterrestrials.

Could the incredible
stonework found at the Hypogeum

have been achieved using
extraterrestrial technology?

Curiously, the first
archaeological investigations

performed at the site in 1907

turned up
more than 7,000 skeletons.

And according to a National
Geographic Magazine article

from May 1920,

many were found
to have unusually long skulls.

In 2014,
I had the great privilege

of looking at five
of these elongated skulls,

and they were very interesting
because one of those skulls

that I looked at
had a missing sagittal suture.

The sagittal
suture connects to the sides

and roof of the cranium.

This suture is open
when a person is born

and closes around the age of 35.

As you can see,
even from the inside,

there's no sign
of the middle suture.

- Right.
- Completely fused.

That's fascinating.

Even if you have a suture
that ossifies or fuses together,

you still have a fine line

that you can discover or detect.

And with the one skull that
I was able to look at in Malta,

that suture
was completely missing.

Enormous megalithic structures

built more than 5,000 years ago.

A mysterious underground
sanctuary hidden for centuries.

Ancient skulls
of abnormal size and shape.

As far as ancient astronaut
theorists are concerned,

the evidence all points
to one conclusion,

that the islands of Malta
were once home

to extraterrestrial beings.

There aren't many places on Earth

that can turn modern archaeology
on its head

like the next mysterious site
on our countdown.

It's a place
that mainstream science says

can't possibly exist.

But not only does it exist,

it may even provide evidence

of the Great Flood described
in the Bible.

Number seven on our countdown
of the top ten mysterious sites,

Gobekli Tepe.

Sanliurfa, Turkey.

October 1994.

While plowing his field,

shepherd Savak Yildiz spots
a strangely shaped stone

protruding from the ground.

After brushing away the dirt,

he realizes that it may be part
of a much larger object.

It wasn't until German
archaeologist Klaus Schmidt

visited the site
and began digging

when they realized
what was really at this site.

What he
discovered was mind-blowing.

After discovering
the first T-shaped pillar

buried at the site,

he soon found more
of these massive structures.

Klaus Schmidt
had the sediment layers

of the site radiocarbon-dated.

The results indicated
that the stone structures

could be as much
as 12,000 years old,

more than 5,000 years older

than mankind's first known
civilization in Mesopotamia.

Some researchers propose,
the megalithic structures

provide evidence that
an advanced civilization existed

on Earth many thousands
of years ago,

one that was assisted
by otherworldly visitors

before falling victim
to a deadly cataclysm.

There is evidence
of a great cataclysm

that took place
around 12,900 years ago.

It's called the Younger Dryas
impact event...

...where comets and air bursts

impacted the land
and the ice sheets,

causing massive flooding.

I mean, Gobekli Tepe
dates to the time

of the Younger Dryas events
that were taking place

over a few thousand-year period.

Gobekli Tepe
could be the smoking gun

of a lost civilization,

'cause it confirms that,
at the time of the last ice age,

there was high culture
existing in the world.

This is something that had
been speculated for many years.

If you think Gobekli Tepe is one

of the most mysterious sites
on Earth,

there's another that I think
is even more baffling.

It's a series of massive stones
in Northern France

that have been arranged
in a very deliberate

and perplexing
geometric pattern.

Even modern archaeology
can't explain their purpose.

At number six on our countdown
of the top ten mysterious sites,

the standing stones of Carnac.

On the
northwest coast of France,

just south of Brittany,

lies one of the most important
prehistoric sites

in Europe.

At the seaside village
of Carnac,

over 3,000 megalithic stones
are placed in rows

over two miles long.

The Carnac stones were hewn
from local rock formations

and erected between 4500
to 2500 BC,

at the end of the Stone Age.

They are the largest collection
of standing stones in the world.

Archaeologists are baffled

by the many megaliths
at Carnac here.

It's clearly
a massive construction project,

with blocks of granite
weighing 50 to 100

to even up to 350 tons.

Although
mainstream archaeologists speculate

that the Carnac stones
are most likely tomb markers,

ancient astronaut theorists
believe

these stones
are intentionally laid out

in a unique geometric formation.

The Carnac
stones were laid out incredibly precisely

using standard units
of measurement

that show
very sophisticated mathematics.

It's been suggested

that they were using
the Pythagorean theorem

thousands of years ago.

It may elude us now,

exactly what they were trying
to accomplish,

but it seems
like they were encoding

some kind of information.

The Pythagorean theorem

wasn't established
until 2,000 years

after the last Carnac stones
were erected.

So how could the builders
have possessed this knowledge?

And why were the stones arranged

in such precise
geometrical patterns?

The Carnac stones are

a perfect marker for any kind

of aerial vehicle
looking down on the Earth.

The
extraterrestrials told our ancestor,

"Do this. Move stones.

Put it exactly in this pattern.
We order you."

It was on purpose.

The idea was that generations
in the far future

will start to ask questions.

That's the situation
we have today.

Could the Carnac
stones contain a mathematical message

left by extraterrestrials?

Ancient astronaut theorists
say yes

and suggest further evidence
can be found

by examining a famous
megalithic site to the north.

We're nearly halfway is,

we through our countdown
of my top ten

most mysterious sites

that we've investigated
on Ancient Aliens.

And the next site on my list

is one that some believe
has the power to heal,

while others say it was once
a portal through space and time.

But what's most amazing to me

is that ancient people
arranged these stones

to be an exact replica
of our solar system.

Number five, Stonehenge.

Wiltshire, England.

The Neolithic monument
known as Stonehenge

has dominated the landscape here
for no less than 5,000 years.

The iconic stone circle consists
of vertical standing stones

towering 13 feet tall

and weighing 25 tons each,

topped by connecting
horizontal lintel stones

and surrounding a smaller ring
of stones in the center.

Stonehenge is unlike
any stone circle anywhere on the planet.

It's perfectly circular.
It has lintels above it.

It's designed
with precision-engineered

astronomical alignments.

How could the ancient
Stone Age people of Britain

move these stones into place?

However
Stonehenge was constructed,

it involved moving much more
than just the stone blocks

that stand today.

According to researchers,

this is just 25%
of the original monument...

...the center
of a much larger structure

that was surrounded
by multiple concentric circles

constructed over a period
of more than a thousand years.

So,
Stonehenge is very interesting

in that it evolves
over a very long period of time.

And the first thing
that goes up at Stonehenge

is not there anymore.

It's the 56 holes that today
are known as the Aubrey circle.

It used to be filled with 56
stones in a big stone circle

just inside the henge.

Stonehenge is a replica

of our solar system on Earth.

Each circle corresponds
with one of our planets

inside our solar system,
including Pluto.

So, now we have a structure
that's at least 4,000 years old,

and our ancestors knew
about Pluto?

Without telescopes?

Someone told them about Pluto

and all of our planets
in our solar system,

and that is the message.

Because, in Neolithic time,

there is no way
that they knew about this.

As amazing
as Stonehenge looks today,

remember, what's still standing

is only a fraction
of the original structure.

But 2,400 miles to the south

is an even more extraordinary
ancient site

that remains
almost perfectly intact.

The number four site
on my countdown,

Egypt's Giza Plateau.

In April 2018,

ancient astronaut theorist
Giorgio Tsoukalos,

Egyptologist Ramy Romany,

and archaeoastronomer
Dr. Giulio Magli

traveled to Cairo to investigate

what is perhaps
the most impressive structure

ever constructed on Earth,

the Great Pyramid of Giza.

This is...

- Look at the size of this thing.
- ...incredible.

Every single
block is bigger than this car.

Yeah.
It is insane. It really is.

Are you ready for some climbing?

I have goose
bumps on my calves right now.

Built from more
than two million limestone blocks

each weighing
thousands of pounds,

the pyramid is aligned perfectly

to the cardinal points
of the compass...

North, south, east and west...

Suggesting
that its builders possessed

extraordinary
geographical knowledge.

According to
mainstream Egyptologists,

the Great Pyramid was built
sometime around 2500 BC

as the burial tomb
of the Pharaoh Khufu.

But this claim
has yet to be proven.

Archaeologists
and Egyptologists claim

that they were tombs
for the pharaohs,

and yet no Egyptian pharaoh
was ever found

in a pyramid in Egypt.

We have found the mummies
of many Egyptian pharaohs,

but they're found in vaults
deep underground

at the Valley of the Kings
in Luxor,

hundreds of miles away
from the pyramids.

The pyramids have
no real explanation

of what their purpose was.

But if the
pyramids at Giza were not intended

to house the remains
of dead pharaohs,

then why were
these towering monuments built?

In his 1998 book
The Giza Power Plant,

noted machinist and engineer
Christopher Dunn

proposed that the shape,
positions of chambers,

and proximity
to underground rivers indicate

the pyramids of Giza functioned
as ancient power plants.

This incredible hypothesis,

which has since been adopted

by other scientists
and researchers,

may be impossible to ever prove.

But ancient astronaut theorists
believe new information

about the Great Pyramid
may soon be revealed.

In March 2016,

archaeologists examining
the ancient structure

with a new technology
known as muography

made a shocking discovery,

a mysterious chamber
inside the structure

that is as large
as the Statue of Liberty.

This new room

is only the beginning of it.

I'm sure, within the next months
or at least two years,

they will discover more rooms
in the Great Pyramid.

I personally think
that the Great Pyramid in Egypt

holds some sort of time capsule.

Perhaps what
lies within the Great Pyramid

will reveal not only incredible
truths about ancient Egypt

but about the history
of humankind.

Could there be clues that reveal

that Egypt was once home to an
extraterrestrial civilization?

High in the mountains of Peru

lies a city

with monumental walls
so tightly joined

that modern engineers admit

that they couldn't replicate it
today.

Which begs the question,

how did ancient people
accomplish this

without the help
of modern technology?

And at an altitude
of 12,000 feet?

Number three on my countdown

of the world's
top ten mysterious sites,

Sacsayhuam�n.

Cuzco, Peru.

On the northern outskirts
of what was once

the capital city of the Inca,

at an elevation
of more than 12,000 feet,

looms the ancient fortress
of Sacsayhuam�n.

Mainstream archaeologists
suggest

the Inca built this megalithic
site in the 15th century AD,

but many researchers now believe

that the foundation
of Sacsayhuam�n

dates back centuries earlier.

My feeling is

that we're lookingat a two-phase,
uh, construction site

in many of the so-called,
uh, Inca stone monuments

and that the Inca structures
sit on top

of much more ancient
rock-cut structures

and megalithic structures

that we just don't know
who built them.

And this actually fits
with the Incas' own view.

Like many Inca sites,

Sacsayhuam�n features
astonishing stonework

but not all of it credited
to the Inca.

According to
conventional archaeology,

the Killke culture built
the older sections of the site

approximately 1,000 years ago.

But the Inca themselves believed

the site was constructed by an
earlier, unnamed race of people

led by a powerful god
who descended from the skies.

Throughout time,
there has been witness

to a god named Viracocha

that visited
the South American people

and blessed them and gave them
all types of technology.

Some of his
physical characteristics

make him stand out
from the indigenous population,

because he was
not at all similar

to the indigenous people.

Viracocha was
the primary deity of the Andes,

going back
many thousands of years.

He was thought to be the founder

of all the ancient sites we see
in Peru and Bolivia today.

But did
Viracocha actually exist?

Could he have been, as ancient
astronaut theorists suggest,

a visitor from an alien world?

If so, it might help to explain

just how the ancient site
was constructed.

It's amazing, all these, uh...

the-the weight of the stones.

The walls are
put together with blocks of stone

weighing 50 or 100 tons...

...cut and shaped like
the pieces of a jigsaw puzzle

so that they lock together
so tightly

that you can't even get
a sheet of paper between them.

According to local legend,

a bird was responsible
for the seamless construction.

Legends say
the winged creature carried

a powerful chemical in its beak,

a substance capable
of melting stone.

But is it possible, as
ancient astronaut theorists suggest,

that the mythical bird might
actually have been a spacecraft,

piloted by alien visitors known
to the locals as space brothers?

Many of the sites we've featured

on my countdown are famous

because they were constructed
with stone blocks

of the most extraordinary size
and weight.

And no megalithic construction
on Earth is more staggering

than my number two
most mysterious site,

the ruins of Baalbek.

Eastern Lebanon.

The Bekaa Valley.

Here at this archaeological site

stand the ruins of Heliopolis...

...built in the fourth century
BC by Alexander the Great

to honor Zeus.

But beneath
the Corinthian columns

and remnants of both Greek
and Roman architecture

lie the ruins of a site
that is much, much older.

According to archaeologists,

it dates back
nearly 9,000 years.

The ancient city of Baalbek,

named after the early Canaanite
deity Baal.

Baal is the god of life,
the god of the sky, the god of the sun.

He was the god that was
venerated on the site of Baalbek

during the Canaanite
and the Phoenician times.

And so,
because it was already sacred

to the god Baal,

then later the Greeks
and the Romans

then would build temples
on this very same spot.

Archaeological
surveys have revealed

that the enormous
stone foundation that lies

at the base of the site
dates back thousands of years.

Baalbek, as we know from
the archaeological evidence,

must have existed
during Neolithic period,

between 6,000 to 8,000 years
or even 9,000 years BC.

But even more
significant to ancient astronaut theorists

is their belief
that the colossal stone platform

may have been built using
extraterrestrial technology.

As evidence, researchers point

to the gigantic
megalithic stones

incorporated
into the foundation,

each weighing
between 800 to 1,600 tons

and perfectly fitted together.

In Baalbek,

stone blocks were transported

which have a weight
of over 1,500 tons.

And this not in a flat land.

It's all mountain.

We have absolutely no idea
how such heavy loads

could have been transported
in the mountain.

I have nothing
but a speculation to this.

But for sure it does never fit

into the prehistoric knowledge
of our ancestors.

This is the real mystery
of Baalbek...

How these stones
came to be there,

why they were placed there,
and specifically

how they were transported
into place.

Because some of the stones
are of such magnitude

that modern machinery is
incapable of putting them there.

But somehow our ancestors
were able to do this.

It is one of the oldest,
oldest megalithic sites on the planet.

And it has these huge stones
laid out

in a precise geometrical shape

at a time
when the prehistoric people

who would have lived there

would have no concept of how
to move stones of that nature.

But if the
moving, hoisting and setting

of such massive stones
was so incredibly difficult,

then who, or what,
helped to place them there?

And, perhaps
more importantly, why?

We know that the ancients
always went to power places,

and Baalbek
clearly is one of them.

It is a place where the gods
were worshipped,

where the gods were said
to be present.

And so,
when it comes to Baalbek,

this platform was built there
for a reason.

For what purpose it was used

is a question we can't answer
at this moment in time.

But what we do know is that
whatever was happening there

had a great
religious significance to them

and was linked
with worshipping deities,

deities which clearly are
of an otherworldly origin.

Hopefully, at one point,

archaeology
will be so open-minded

that they actually want
to explore this further.

We're just moments away

from the top site on my list.

And in my opinion,

we've definitely saved
the best for last.

Can you guess what it is?

We've finally reached number one

on my top ten countdown

of Ancient Aliens'
most mysterious sites.

Lying in ruins atop a vast
plateau in the Andes Mountains

at an altitude
of over 12,000 feet,

the megalithic stones found
at this incredible location

are among the largest
on planet Earth.

But even more impressive
is how they were cut

with such exact precision.

And, to me, they provide
the strongest evidence

that extraterrestrials
visited our planet

and changed the course
of human history.

My number one most mysterious
site, Puma Punku.

Bolivia, South America.

Here lie the mysterious
ancient ruins of Puma Punku.

Spread across a desert plateau

are dozens
of megalithic stone blocks

cut with extreme precision

and some weighing
more than 100 tons.

These are the mysterious ruins

of Puma Punku,

nearly 13,000 feet
in the Altiplano of Bolivia.

What you have here are
massive blocks of granite

scattered like some kid's
toy blocks around the site.

Archaeologists are baffled
by what Puma Punku was,

how it looked,
and what the purpose

of this enormous structure
would have been.

What sets Puma Punku
apart from other ancient megalithic sites

is the incredible stonework,

which some researchers suggest
is far too sophisticated

to have been accomplished
using primitive tools.

One of the amazing things here
at Puma Punku

is the precision of the blocks.

You can see with this block
of granite

that it's really been cut
at very accurate right angles.

Not only do these granite blocks
have precision corners

but they also have
these difficult drill holes

that are going
right through the rock.

Mainstream scientists believe

the site
was originally constructed

about 2,000 years ago.

But in 1945, archaeologist
Arthur Posnansky proposed

that Puma Punku
was much, much older.

By examining the structures
and what he believed

were their original alignment
with the stars,

he dated the ruins to 15,000 BC.

But how could
such primitive people,

living perhaps
over 10,000 years ago,

have produced
such flawless stonework?

The Spanish
conqueror asked the Inca,

the people living there,
including the king of the Inca,

"What is this Puma Punku?"

And they all said, "It's not us.

"It's not our forefather
who make this.

These were made by the gods
in one single night."

One of the
earliest chronicles that we have

in regards to Puma Punku talks
about that these giant platforms

were moved through the air
by the sound of a trumpet.

They basically floated
into place.

And here's another
very interesting thing that,

according to the myths,
this is exactly what happened

with the moai on Easter Island.

Could it be that
the local traditions of Easter Island

and Puma Punku tell nearly
identical stories of levitation

because the ancient people
at both sites witnessed

the same
extraterrestrial technology?

And if the stone blocks
of Puma Punku

were once part
of a megalithic structure,

how did it end up in ruins?

I honestly believe
that Puma Punku

is more than 12,000 years old.

12,000 years ago,
there was a global cataclysm

that destroyed a lot
of ancient sites that we find,

whether in Egypt
or the Altiplano of Bolivia.

We had, at the end
of the last ice age,

all kinds
of catastrophic flooding

due to the events
in the climate changes

and the melting of the glaciers
and increased precipitation.

There were incredible rises
in sea levels

since the end
of the last ice age.

More than 12,000 years ago,

Lake Titicaca was 100 feet
higher than it is today.

And I believe that Puma Punku

was literally on the shore
of the lake at that time,

whereas now
it's eight miles away.

12,000 years ago,

it was hit by a wave of mud
coming from Lake Titicaca

as a tsunami.

A megalithic structure
built more than 12,000 years ago

with the help
of extraterrestrial technology

destroyed by a great cataclysm.

If this incredible story
is true,

one question still remains.

What was Puma Punku?

When you look
at the complexity of Puma Punku,

the huge platforms,
the interlocking blocks

that was made into
what they thought

were indestructible walls...

...what you could have is

a kind of perfectly made
granite spaceport

that extraterrestrials
would want.

Although the origins
of many of the incredible sites

we've featured on Ancient Aliens
continue to be debated,

to me,
Puma Punku is so extraordinary

that it is the one site
where I will say, yes,

this was likely built directly
by the aliens themselves.

But make no mistake,

each and every one of the sites
on our countdown

deserves to be investigated
with an open mind.

And it is only by asking
the questions

that we can finally uncover
the truth

of our extraterrestrial
origins.

ANCIENT ALIENS 17x02