When German-Iraqi relations broke down, this embassy was vacated post haste.

On high feast days, the entire blue-glass front of this modern church opens up to reveal the small wooden church inside.

A subterranean display of public art and architecture.

One of the most easily accessible examples of the rare 1960s UFO houses.

A glamorous hotel that once accommodated French resistance fighters and concentration camp survivors.

This sculpture honors the man who was known as the "Righteous Among the Nations."

Napoleon’s home in exile, decorated with poisonous wallpaper.

Macabre astrological automaton clock dating to the late 1400s.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

A significant example of Czech cubist architecture—a style you won't find anywhere else in the world.

300 years of pharmaceutical history on display.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

The rubbery beast is sculpted from recycled materials.

Along the edge of this fountain are 365 smaller fountains that represent the days of the year.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

The inverted pyramid design of this station stands out amid Bratislava's urban landscape.

The Habsburgs' royal collections of art and wonders.

The final resting place for the remains of 143 Habsburg royalty.

Baroque celebration of the end of the Great Plague of Vienna.

The site of slaughterhouses that once satisfied Parisians' taste for horse meat is now home to a park and book market.

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

A 13th-century convent where St. Margaret of Hungary spent her teenage years.

An extraordinary natural landscape of mountains, waterfalls, and rocky cliffs riddled with tunnels.

A lively circle of dancers in the Georgian capital commemorates an ancient rite of spring.