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

Replicas of fossils unearthed during renovation work reveal how this area would have looked millions of years ago.

A rare set of strings by famed instrument maker Antonio Stradivarius is on display in the Royal Palace.

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

An ancient Egyptian temple in the middle of Madrid, Spain.

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

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

This quirky curiosity shop takes its cues from the world's bazaars.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.

A lion given to the prime minister somehow got stuffed and sent to Florida.

The first custom-designed building to showcase the works of Dale Chihuly is a wonderland of glass and light.

A monument celebrating the idea of reaching inaccessible places.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

No one knows the meaning behind this giant sculpture of a nude woman with a fork riding a rooster in Havana.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

Romania's triumphal arch looks out over Bucharest.

This once-derelict building is now one of the most beautiful bookstores in the world.

This massive underground salt mine now holds a sci-fi theme park in its depths.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

Something's watching you.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.