This curious fresh and salt water lake holds a secret that draws in deep divers from around the world.

It is believed that the historic tower is sinking at a rate of an inch a year, though no one is completely sure why.

Khmer Rouge's high security prison.

Originally a meeting place for foreign correspondents and war reporters, the FCC remains an atmospheric spot for sunset drinks in Phnom Penh.

One of the biggest markets in Asia, under one of the continent's largest domes.

5,000 skulls in memorial to those killed by the Khmer Rouge.

Tiny memorials honor individual victims of the Holocaust.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

The most visited, and possibly most controversial, museum in Germany.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

"Portugal's Stonehenge" is made up of nut-like stones aligned with the heavens.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

A hidden three-foot-wide house separates these two regal churches.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

A little sculpture with a large wardrobe.

Climb inside an iron crystal magnified 165 billion times its normal size.

This Funeral Hearse Museum represents the finest in cadaver transportation.

This cemetery features modernist statues as strange as its name.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

The late, disgraced President's embalmed remains displayed for all to see… theoretically.

Iconic Los Angeles residence famous for its 19 statues of Michelangelo's David.

A forgotten tribute to a South American hero hidden in a cluster of traffic islands.