A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

Known simply as "The Hand," this famous public sculpture in Berlin was featured in a Depeche Mode music video.

A 12th-century fortress containing some of Berlin's oldest buildings.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A horse statue that receives constant makeovers from graffiti artists and locals.

This medieval cathedral houses stained-glass windows featuring saints and pretzels.

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

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

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

This pair of gilded girls atop an Art Deco building in Copenhagen were built to function as a weather indicator.

Site of the first radio and telephone broadcasting companies in Copenhagen.

This bridge's unique architecture honors nautical heritage and encourages self-awareness.

Visitors are treated to a stained glass kaleidoscope interior inside this work of art.

These eight mummies are the best-preserved human remains ever discovered in North America.

Greenland's first shopping mall also hosts the country's government.

This millstone commemorates a gruesome tale that may have been the source of the city's name.

Swedish skyscraper with a 90° twist.

This chimerical bridge/tunnel appears to dead end right into the sea.

This poignant sculpture of a gnarled weapon is a symbol of non-violence.

This museum is a portal to 20th-century Denmark.

The last Viking king of Denmark is buried inside the crypt of this cathedral.

An exhibition of preserved locomotives housed in a 1950s depot shows the history of Denmark's railway.