A striking symbol of the Bulgarian capital.

This massive monument was unveiled the day Kosovo declared independence from Serbia.

A 11-foot former president stands on a Kosovo street that also bears his name.

A futuristic, brutalist masterpiece that is also strangely prison-like.

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

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

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

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

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.

The largest fountain in Bratislava.

Too much gossip or just missing curfew could land you in here for a couple of days.

Thousands of slain Soviet soldiers are buried within the shadow of this enormous obelisk.

After 11 years of reconstruction work, Slovakia's finest hilltop chapel complex is finally reopen to the public.

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.

For decades, Hungary's Communist Party insisted this gulag had never existed.

This building has survived for more than a century and remains virtually untouched.

One of Hungary's most influential places of learning is also home to one of the world's most beautiful libraries.

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

The massive white mound and accompanying water terraces are a striking geological oddity.

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

Hungarian self-built castle.

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