A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

A silly medieval mural preserved on the side of a Viennese house.

Legends surround an ancient tree trunk riddled with nails for good luck.

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

The Habsburgs' royal collections of art and wonders.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

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

A peculiar samurai statue overlooks the center of Brno.

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

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.

A cheeky architectural easter egg.

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

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

While the U.S. and Soviet Union were engaged in a space race, Poland built a UFO on the ground.

Relive a Polish uprising via an enormous, century-old cyclorama.

A 90-ton, gravity-defiant steam locomotive shoots for the skies in this bizarrely beautiful public artwork.

A collection of old neon signs from all over Poland line a secluded courtyard.

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

The silly symbol for an underground protest group is now scattered around the city.

A striking public sculpture representing the period of martial law in Communist Poland.

A tribute to the first human in space.

A cluster of headless, armless sculptures looms within a popular Polish park.