This tin chapel was built by POW's during World War II and is painted to look like something much more grand.

The true age of this ancient stone circle is unknown, but its stunning vista isn't in question.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

This Scottish burial tomb once held hundreds of ancient eagle bones.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

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

This metal tower in the desert provides views of a handful of Nazca geoglyphs.

A desert that evokes the surreal.

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

This red lake 4,000 meters above sea level is home to rare flamingos.

A seemingly endless landscape of pure salt stretches far across Bolivia.

Mountain of unimaginable riches that bankrolled the Spanish Empire, complete with its own underworld god.

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A spiral staircase twists to the top of this unusual Czech lookout tower.

Created as a "model concentration camp" to hide Nazi atrocities from the international community, this former camp-ghetto now holds a museum and memorial honoring the lives lost within.

The largest manmade caves in Europe now function as a motorbike club's headquarters.

A church of bones, decorated with 40,000 human skeletons.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

This small chapel is built of human bones and decorated with a golden skeleton.