This picturesque castle in Poland has a rich history, including a legend that ties it to lost Incan treasures.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

There are thousands of tributes and memorials to the King, but none quite like this one in a Kraków city park.

Communism's topsy-turvy effect on Poland has been brought to life in this wacky tourist trap.

Legend says this sacred tree was a gift from goddess Athena.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

A gigantic statue of a Russian soldier watches over the ancient city of Plovdiv, a prominent reminder of the Soviet period in Bulgaria.

"Unity, Creativity, Beauty."

An ancient Thracian city where fire rituals were practiced on the largest cult altar in Southeast Europe.

An abandoned saucer-shaped monument in the Bulgarian mountains.

This eccentric folly house was designed by Romanian thinker Bogdan-Petriceicu Hasdeu, with a helping hand from his deceased daughter's spirit.

This Hungarian stilt village is built in a lake that never freezes over due to the power plant that that uses it as a cooling pond.