This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

A collection of artworks exclusively created by the mentally ill that was almost burned by Nazi culture police.

This German fountain of a legendary apple wine-loving drink thief will spit on you.

A rare chance to ride one of the few continuous elevators still in operation.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

Centuries of warfare, tragedy, executions, and poetry come together in this 13th-century fortress.

A poignant mural honors the heroic teenage non-conformists who took on the Nazis and paid the ultimate price.

The largest mosque in Germany.

The final resting place for a wealthy Roman family, this tomb might be the best preserved of its kind outside Italy.

Residing along a busy thoroughfare, this sculpture urges passersby to consider the future.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

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

A church filled with the bones of hundreds of virgins martyrs—or so they say.

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

Twisted buildings adorn the banks of the Rhine river.

Amsterdam's Red Light District leaves little to the imagination.

A line number in Amsterdam that will likely never be used again due to its tragic history.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

Where royalty waits in the height of luxury.

This vast collection of smoking pipes from across the world spans centuries.

This bronze statue of Martin Luther King was placed in the park without permission.

A poignant museum dedicated to the history of the Dutch resistance against Nazi occupation

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.