A mud brick kasbah with a history of lavishness and traitorship.

A fortified city, home to a remaining population of five families

1% of Greenland's entire population used to live in this single building, which is now slated for demolition.

This igloo-shaped landmark in Iqaluit serves as the seat of the Diocese of the Arctic.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

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

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

This large round boulder is said to emit spiritual power, but it may just be magnets.

The world's most remote airport.

The largest stone moai on Rapa Nui.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

As the Dead Sea continues to deplete, massive sinkholes open along its banks.

Descend 2,030 years into the past in an ancient tunnel built to support Jerusalem's most famous wall.

A "miracle" that seems to produce more holy fistfights than holy revelations.

The West's first incursion into the Afghan world lies buried beneath a military base.

What was once supposed to be the symbol of a shining Afghan future is now a bombed-out ruin.

All that remains of a magnate's dream home is a historic gate and an abandoned public pool.

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.

The site of a tragic massacre that spawned a multimedia franchise.

Some of the earliest burial grounds of New York State are to be found hidden away in this quaint town.

Spies, love letters, and ghost stories have all left their mark on this home-cum-museum.