This once architecturally advanced housing complex is now a haven for squatters that still bears the scars of war.

This seaside sanctuary was once one of the most important religious sites for women in ancient Greece.

Countless grotesque faces stare out from this eerie Prague art wall.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

This automated sculpture of two men peeing will spell out text messages with their micturition.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

This Czech church doubles as something of a permanent fashion exhibition for a statue of the Infant Jesus.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

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

This artificial cave looks like something out of a fairytale.

Gladiators once walked this ancient, subterranean passage.

This Byzantine Church was moved from Paris to Athens block by block.

This fairytale-looking castle is a wonderful example of Greek neo-Gothic architecture

What once sat in the world’s spotlight is today a largely disused ghost complex.

The heads and relics of 179 monks slaughtered by pirates are on display within this Ceonobic Monastery.

The abandoned summer estate of the former Greek Royal Family.

The largest crypt ever constructed in France was built in the 11th century on an ancient Druid sacred site.

The famous winding walk at Chartres is surrounded in mystery and myth.