This postmodern apartment block was designed to be a vertical neighborhood.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

A vault of safe-deposit boxes in an old bank has been repurposed as a time capsule of Hispanic culture.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

This lucky bronze frog was gifted to Madrid by a casino.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

Five million people are laid to rest here, more than the population of Madrid itself.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Just like in Hollywood, Madrid has also a forgotten walk of fame.

Commonly acknowledged as the only public monument to the Devil himself.

Come for the flowers, stay for the bats!

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.