For over 40 years, this quaint little house has teetered on a rock in the middle of a river.

A grand Yugoslav memorial to the group of partisans who fought and died resisting western Serbia’s Nazi occupation.

A medieval bridge stretches over a sulfur-rich river that leads to year-round natural hot springs.

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

Climb into Albania's communist history while enjoying a spectacular ocean view.

Monasteries on rock pillars, once accessible only by frayed ropes.

Thousands of rusting train cars have been slowly falling apart on the edge of Greece's second largest city.

An autonomous republic of Orthodox monks.

This sculpture used famed boxer Joe Louis as the inspiration behind its body.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

Romania's triumphal arch looks out over Bucharest.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

This once-derelict building is now one of the most beautiful bookstores in the world.

Once an opulent Art Nouveau hotspot, the Constanța Casino is one of Romania's most beautiful abandoned buildings.

Instead of sermons, this church became home to millions of books.

Tiny communists hammer away on the Olomouc Astronomical Clock.

A cheeky reminder about the value of art dangles above one of Olomouc's busiest streets.

This almost a century old piece of architecture had been overlooked by most, except for the drunk and the homeless

Tourists to the mountaintop Sicilian town often overlook its ancient fortifications.

A medieval wash house where people washed clothes in a river allegedly formed by the tears of a mourning nymph.

Beijing's version of Disneyland, completely abandoned, mostly destroyed.

A cablecar-station-turned-revolving restaurant with 360-degree views of the Swiss skyline.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

The alpine falls where Sherlock Holmes apparently met his demise can actually be visited.