One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

A hands-off space for graffiti artists to hone and display their skills.

San Francisco's newly reopened hands-on science museum.

The magic's in the hole!

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

An unusual round church in London with a Templar past.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Olfactory delights in San Francisco's Botanical Gardens.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Home to items never before seen by the public.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

A beautiful geyser under environmental threat.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

The site of the climactic scene from the classic horror film is now a historic landmark.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The final resting place of New Orleans' most famous voodoo priestess.

Eighteen miniature death-scene dioramas.

The United States Capitol's former columns still stand.

France's most famous cemetery, with some of its most curious tombs.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

An enormous, inside-out glass globe built in 1935.