Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

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

"Holy Wisdom" overlooks the city that became its namesake.

A striking symbol of the Bulgarian capital.

The apartment building where JFK's assassin lived after defecting to the Soviet Union.

A striking Soviet memorial commemorates the liberation of Belarus from the Nazis.

Thanks to its heroic service during WWII this Soviet castle has been turned into a monument towered over by a brutalist titan.

A small museum in this border city displays the contraband art that has been stolen back from smugglers.

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.

What happens when you cross a mayor and a painter?

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

A naturally beautiful, seemingly bottomless deep blue spring.

A strangely forgotten claimant to the much contested title of "Source of the Nile."

Burial site of the world's most widely known researcher on the endangered mountain gorilla.

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

An eerie former warehouse turned cistern turned movie set.

The oldest known university in the world is in Fez, Morocco.

Vast stretch of tide-pools with a unique Moroccan charm.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.