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

Elevated freight railway turned wildly successful urban park.

Eighty million natural history specimens call this gargantuan museum home.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The world’s first penitentiary, meant to be humane, drove men insane.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

Comprised of Spanish war cannons, this sculpture once graced the bow of a WWI warship.

The arboretum whose marshy soil sucked up the dreams of housing developers.

Prayers and messages of hope decorate the ceramic tiles of this pavilion.

143 feet of leaping muskie whose mouth can be used as a wedding venue.

Software company Epic Systems has created one of the strangest and largest workplaces of all time.

Robots, lasers, and whoopee cushions, oh my!

A bizarre house filled with an astounding array of collections.

Budapest's Communist-era statues, banished to the suburbs.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

2300-year-old Roman road connecting the empire.

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.

Across Valencia lie the remains of three ancient fortifications built centuries apart: a Roman enclosure, an Islamic expansion, and a medieval Christian wall.

Walk into an underground archeological dig, the site of the Roman Forum that was once the center of Valencia.

A fantastic Christmas tradition where defecation meets the manger.

A daily pyrotechnic celebration marks a beloved tradition during Valencia's festival season.

Spain's largest bullring offers a unique glimpse at architecture and history.