The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

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

Macabre astrological automaton clock dating to the late 1400s.

Cold war icon and onetime "hole" in the iron curtain.

Three-story concrete ram with a permanent gift shop.

One man's artistic vision is a small town government's legal battle.