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

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

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

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

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

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

Eighty million natural history specimens call this gargantuan museum home.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

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

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

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

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

Rippling sand dunes frozen in the Arizona rock.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.