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

An abandoned 19th-century iron factory perched along the outskirts of an idyllic village.

An unusual cave filled with rare alien-looking aragonite formations.

Tiny communists hammer away on the Olomouc Astronomical Clock.

An army of sleeping knights sculpted by a self-taught local artist beautifully depict an old Czech legend.

Europe's second largest ossuary wasn't discovered until 2001.

A cheeky architectural easter egg.

A peculiar clock commemorates a historic victory won by ringing the noonday bell an hour early.

A former top secret nuclear fallout shelter now operates like a hotel stuck in the Cold War.

This hanging crocodile is thought to be the "dragon" that once plagued a Czech city.

Mummified monks and the accidentally interred, in a 17th-century crypt.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

Mysterious painted skulls in Moravia.

A mesmerizing landscape of 18th-century cellars carved out of the land.

A unique hotel for the artistic soul.

The largest fountain in Bratislava.

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

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

This spaceship sculpture in the middle of the Slovakian capital looks like it just crash-landed.

A cableway for car transport.

The world's newest astronomical clock is also its most accurate.

The second-largest Jewish temple in Bulgaria was deserted after World War II, seized by the communist government and then abandoned again.

A spectacular Bulgarian cave resembling a devil's head with a waterfall rushing down its throat.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.