Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

Monument to a suicide protesting the Soviet invasion.

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

Twisted buildings adorn the banks of the Rhine river.

No need to strap in for a "ride" on this walkable roller coaster.

The world's biggest pet store.

This former steel and coal plant is now a neon-lit industrial fantasia.

This massive steel pyramid can be entered by a set of jagged steps that let visitors stand in its heart.

An industrial relic is now one of Europe's most staggering art spaces.

A church of bones, decorated with 40,000 human skeletons.