Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The most visited, and possibly most controversial, museum in Germany.

An eerie, derelict amusement park in Berlin.

In this truly magical place, rent hasn't been raised since the year 1520.

This theme park presents 5,000 years of Shanghai history and includes a "sunken" exhibition hall.

A whimsical bridge adorned with decorative dragons.

This massive subterranean fissure is known as the "underground Grand Canyon."

A Buddhist theme park brings you a Buddhist version of Hell.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

An ethereal glowing blue ocean cave in Croatia.

Formerly Yugoslavia's "forbidden island," this sleepy little city still holds the abandoned remains of military strongholds.

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

A musical instrument played by the sea.

Memorial to the father of the Republic of China.

An extraordinary natural landscape of mountains, waterfalls, and rocky cliffs riddled with tunnels.

The world's first hotel built in an abandoned water-filled quarry.