[music playing]
ALBERT LIN: It's literally a city in the clouds.
Maybe those Spanish stories weren't
just legends because that's what a real lost city looks like.
HELICOPTER PILOT: [inaudible] 1 0 1 2.
ALBERT LIN: That's Ciudad Perdida, the Lost City.
Ciudad Perdida, the Lost City, is high
up in Colombia's most isolated mountain range,
the Sierra Nevada.
Archaeologists have spent decades
exploring this dense jungle to find out about the people who
lived here over 500 years ago.
Digital technology will help them reveal more and faster.
[chuckles]
Only the world's toughest archaeologists
can handle this terrain.
Santiago Giraldo has been excavating here for 20 years.
[chuckles] It's a beautiful place.
[helicopter]
It's amazing this place is still standing.
Who discovered it?
SANTIAGO GIRALDO: It was like [spanish],, looters.
And then the archaeologists came in.
Took them about a week to get here.
And they were led by other looters.
Looters led the way, huh?
Yeah, it's actually pretty incredible because they were--
they got into a shotgun fight.
The looters were after the gold that's in the burials.
And one looter came out with, you know, more than 80 pieces
of gold from one burial.
Wow.
Yeah.
ALBERT LIN: Gunfights for gold.
Archeology gets dangerous when gold is involved.
And this place is bursting with it.
Who built all this?
It was a people that we call the Tayrona.
Their predecessors, the [inaudible]
built it around 600 AD.
It's huge.
[music playing]
How many people would've lived here?
About 2,000 to 3,000 at its peak.
And then about 10,000 people living
in the upper part of the basin.
10,000?
Yeah.
All that forest that you see would have been all farmland.
Aw, man, you can almost feel their energy here, you know?
Like all these people running around.
SANTIAGO GIRALDO: It's taken us over 40 years of work
to clear out and survey the site, trying
to tease out what these people were thinking
when they were building it.
ALBERT LIN: 40 years?
SANTIAGO GIRALDO: Yep.