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

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

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

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

The weathered grave of a medieval anchoress who walled herself up in a cell attached to a church.

Experience Larry Spring's self-taught "common sense" laws of physics.

This little museum has an exhibit devoted to the elusive forest denizens.

Nursery with extensive collection of flesh-eating plants operated by the author of "The Savage Garden."

The location of the last stand of Charles Manson's doomsday cult.

Tasked with beautifying a disused stretch of industrial land one artist filled a hole with grass.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

The "Seinfeld" diner.

One of only two commuter aerial tramways in the United States.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

A crumbling hospital from the 1850s on Roosevelt Island.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.