Baroque celebration of the end of the Great Plague of Vienna.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

This 600-year-old home seems to defy physics.

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

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.

Macabre astrological automaton clock dating to the late 1400s.

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

The first museum in the world devoted to sexual gadgetry.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

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

Once the home of a hermetic monk, this cave now houses a small church.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A random tree outside a Budapest hotel has become a DIY shrine to the late singer.

Museum dedicated to the terror regimes of Hungary.

Possibly the world's largest hourglass only needs to be reset every New Year's Eve.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

A crucified and bearded female saint.

Jule Körner's house full of bizarre architectural details.

This series of underground chambers contains Europe's largest subterranean lake that is slowly drained each day.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.