Ben van Kerkwyk

Their origin story comes from Lake Titicaca up into the Sacred Valley, and then they took over.

There are a couple of precursor cultures to the Inca, but –

There's this huge – it's like we just don't know what happened.

There are other sites in Peru.

Graham Hancock's been out there recently.

I was out there just recently too.

There are pyramid sites in Peru that are 5,000 years old, places like Corral.

They're not sophisticated.

It's incredible work in terms of the amount of stone that's been used, but it's not megalithic or –

or precise, but there are pyramid cultures that stretch back at least 5,000 years.

But in terms of the real megalithic precision work in South America, we have no clue who did that.

In fact, there's probably the strangest site.

One of my favorites is Pumapunku, Tiwanaku.

You heard of this place in Bolivia?

Sure.

Tough to get to.

It's amazing.

It's up on the high Altiplano, like 12,500 feet above sea level.

It's like nothing else on the planet.

The stonework there is massive.