This wrecked airplane has been sitting on a black sand beach since the 1970s.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Medicinal spa created with the discharge from a geothermal energy plant.

A complex, nine-layer maze on the grounds of a Venetian doge's playground.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Now harmless, this looming post struck fear into the heart of medieval troublemakers.

A musical instrument played by the sea.

Space-age monument to an early 20th-century uprising.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

The world's most important buildings shrunk to a tiny size.

Croatia's towering concrete blossom grows from the site of a World War II concentration camp.

This huge metal monument is slowly being stripped to its concrete skeleton.

Colorful concentric circles honor a small Croatian town's supposed spot at the nucleus of it all.

An eclectic art form practiced by untrained masters is celebrated at this museum in the heart of Zagreb's old Upper Town.

This Croatian fairytale castle is slowly falling apart thanks to years of neglect.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.