Medieval streets buried beneath a papal fortress now form an underground city you can walk through.

The beautiful baroque library of the Hapsburg empire.

Third time's a charm, or in this case, two testicles are.

A Portuguese museum display features a bizarre assortment of objects.

The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

Browse through a century of this principality's first popular export.

Liechtenstein's royal family calls this medieval alpine castle home.

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

A cheeky architectural easter egg.

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

A tragic tale of a young woman accused of witchcraft haunts this place.

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

A memorial to those who donated their bodies to science.

The final resting place for the remains of 143 Habsburg royalty.

A spherical "micro-nation" in the heart of Vienna.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Physicist’s epitaph provides final confirmation to a career of turmoil.

The smallest statue in Brno will keep you company under the clock on Česká Street.

A peculiar samurai statue overlooks the center of Brno.

This strange statue depicts a young boy's body with an adult Mozart's head and a single wing.

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

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

According to the local legend, these boys and ducks were turned to stone by an angered water goblin.

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