Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

This former boomtown "island" is now submerged below Folsom Lake.

I Street Bridge is the heaviest swinging center bridge in the United States.

Art Deco stylings conceal the true nature of this bridge.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

This futuristic German television spire is actually the world's largest digital clock.

According to a satirical conspiracy theory that persists today, this German city of 300,000 is a hoax invented by the CIA.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.