Open-air museum with a large collection of Soviet-era statues.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

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

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

A surreal statue honoring Prague's favorite literary son.

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

Looming communist pillar with a Czech twist.

Museum dedicated to the terror regimes of Hungary.

Pompeii's less famous neighbor is still revealing her secrets.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Erotic art covers the walls of the largest ancient pleasure palace.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

The final resting place of the poets Shelley and Keats.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

The largest collection of death masks in Ukraine.

A little sculpture with a large wardrobe.

Cozy basement bar sports an inventory of over 2,000 beers.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

Rotterdammers' dirty minds gave this Santa a dirty nickname and cursed it to a life of wandering.