These giant volcano sponges in Antarctica are thought to be the world's oldest living animal, at 15,000 years old.

One of only two civilian settlements in the desolate lands of chilly Antarctica.

This abandoned Antarctic base sits nearly unchanged since it was forsaken in the 1950s, just waiting for you to visit.

One of the most extreme deserts in the world, these snow-free valleys harbor life, despite the hostile environment.

Considered the most remote point in the entire world.

Southern Ocean waters and glacial forces transform the Antarctic ice into these stunning bridges and caves.

This abandoned Antarctic research station is a Soviet ghost frozen in time.

One of the world's southernmost bars.

Fire meets ice at the southernmost volcano on Earth.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

Natural time capsule containing an alien ecosystem.

Thousands of fossilized footprints speckle this Bolivian national park.

This lake’s emerald green waters are a spectacular sight, but it’s not a great place for a swim.

Largest site of dinosaur footprints ever found includes more than 5,000 tracks.

A Christian monastery stands on what was once a holy Incan temple.

The retired vessel is South America's first floating museum.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

An Inca spa, military outpost or maybe… both?

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

The depictions of slaughter are surprisingly detailed at this mysterious ancient site.

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

Now containing the bones of the actual conquistador, instead of someone else.

This stone complex marks the urban center of a lost civilization.

The remains of what was the most important religious complex in coastal Peru for over a millennium.