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

Op-art architecture designed for happiness.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

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

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

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

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

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

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

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

A fake Transylvanian castle houses a cathedral of antlers.

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

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

A 19th-century artistocrat's mansion, turned into a library, hidden in a modern library.

This hidden art nouveau gem was designed by an architect in search of a national style.

Central Europe's largest collection of mini-bottles is on display at this museum devoted to a bitter Hungarian liquor.