Monument to a suicide protesting the Soviet invasion.

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.

Model Trains and Much More in Hamburg.

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

After this historic church was destroyed by World War II bombing, its blackened shell was left standing as a monument.

Striking occult iconography on a medieval German church.

Dancing skeletal figures pay homage to a medieval mural destroyed during World War II.

A stunning two-story timepiece within a medieval Brick Gothic church.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.

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

The bells remain in a shattered heap exactly as they fell when the church was bombed in World War II.

This gateway to subterranean Hanover plays jazz, pop and rock to surprised passersby.

This massive blockhead sculpture hides an entire library.

A museum that chronicles the history of the Nuremberg Trials for Nazi war criminals in the building where the trials were once held.

The prototype for all Nazi concentration camps.

Seventy-five miles of limestone caves host more than a million bottles of wine beneath a sleepy Moldovan town.

This 13th century Orthodox monastery is built right into the Moldovan cliffside.

A stonemason's hilarious revenge came in the form of this peculiarly positioned gargoyle.

This Late Gothic building that once housed Erasmus is now known as the filming location of "Suspiria."

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

The Swiss artist's bulbous and overgrown shape-shifting sculpture controversially graces the center of Bern.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

This simple apartment may have inspired some of the most important theories in the history of science.