The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

Model Trains and Much More in Hamburg.

A Nazi concentration camp and Anne Frank's place of death.

Tiny memorials honor individual victims of the Holocaust.

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

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

The "Prussian Versailles" that is as glorious today as when it was built.

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

This "floating railway" is one of the world's oldest monorail systems.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A monument stands at one of the starting lines of the Trans-Canada Highway, formerly the longest uninterrupted highway in the world.

A famous hotel houses an impression collection of mini dioramas and giant doll houses.

The narrowest street in Canada was once a spot for dastardly doings, now a historic piece of Chinatown.

An operating lighthouse from the 1860s.

This castle was once considered as an option for the Royal Family's alternate residence, but you may know it better from the 'X-Men' movie.

A crumbling cliffside ruin hidden in the woods.

Canada shows its hockey pride with a giant stick.