The prototype for all Nazi concentration camps.

Go surfing on this urban wave, "hacked" by local surfers.

The footprint of a frustrated devil in Munich's Cathedral.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

A fearsome dragon clings to a corner of Munich's city hall.

The patron saint of spinsters grasps a container of dried blood.

A sweet symbol marks the place where torturous executions were once carried out.

The most loyal of little dogs, or a Victorian era publicity stunt?

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

The fountain marks the area where hundreds of accused witches were burned at the stake.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

The final resting place of soldiers' loyal canine companions.

A six-ton wedding present for the King of the Scots.

This site contains overlapping ancient graveyards that existed about 1,000 years apart.

A sculpture commemorating the "world's best mouser" in what is likely Scotland's longest-running distillery

It's said this was once the home of King James V's pet lion.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

Who knew the Devil's domain was a hot spot for tubing?

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

Journey inside the bowels of this sperm whale sculpture.

This lovely hilltop tower was specifically built to withstand 100 MPH winds.

This tribute to the founding father of the American dictionary originally contained a spelling error.

An abandoned Depression-era zoo hidden just off the highway.