The secret medieval communication system will whisk your words above the noise of the crowd.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

Small on the outside, big on the inside, this church is an astonishing act of visual deception.

A brutalist gem towering over the heart of Milan.

The world's oldest rose is so tough it survived being bombed in World War II.

This German monument honors the so-called "Prince of Mathematicians."

Bursting forth from a historic German neighborhood, these day-glo palaces are now a bright fixture in the town.

A thought-provoking outdoor art installation sits in the seat of German law.

A kindergarten shaped like a cat with a tail that's a slide.

This wooden hotel is a temple to German sustainability and forest conservation.

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

Hamburgers are intensely proud of their tunnel beneath the river.

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

This red light district plaza memorializes the Fab Four and their historic connection to the area.

This contentious squat has stood through fire, violence, and government intervention as a hotbed of leftist protest.

Executed in 1401, Exhumed in 1878, Stolen in 2010.