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

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

Hamburgers are intensely proud of their tunnel beneath the river.

This unique rock formation is quite the local celebrity, although one day it may come crashing down.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

One of the world's largest collections of medieval religious art.

A merchant court dedicated to the fictitious King Arthur is heavily adorned with bizarre Renaissance art.

This antique thermometer honors the creator of the first universal temperature scale.

A floundering Polish shipyard was once the soul of the Solidarity movement that capsized communism.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

The mark of the Devil's horns on a marble column in Milan.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

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

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

An artificial date palm stands as a memorial to Warsaw's Jewish community.

This enormous 32-foot painting depicts Poland's greatest medieval battle in glorious detail.

Relive a Polish uprising via an enormous, century-old cyclorama.

This Communist-era residential block is one of the longest residential building in Europe.

Modern art commemorates one of the first military actions of World War II.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

These rare statues are one of the few remaining material witnesses to Old Prussian culture.

A statue honors the children who fought Nazis in Poland.

These massive moving sand dunes have swallowed an entire village and are still on the run.