The largest earthwork effigy in the world.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

The signs of a long buried road can still be found hidden beneath a London sewer grate.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

An obsolete, vanishing traffic device warns Cincinnati drivers away from middle-of-the-road obstructions.

Where beautiful signs live on forever.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

A toxic ghost town sitting atop a massive coal fire.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

A fantastical group of cliffside stairways, bridges, and twisting paths carved out of stone provide a surreal coastal hike.

An inconspicuous footbridge beloved by San Diego locals.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

An abandoned Art Deco hotel nestled on the side of a wooded mountain.

Nestled amid the trees lies an abandoned funicular railway that dates back to the 1920s.

Is this cat asleep or just pretending?

Tragic reminders of the 1945 firebombing campaign over Tokyo still haunt this bridge.

This tiny stone in a children's park is what remains of an ancient, once-worshipped object.

A dilapidated amusement park with a million-dollar view.

A cool dive bar, off the beaten track.

A calico cat named Tama was the wildly popular Super Station Master at this train stop in southeast Japan.

Officially the lowest mountain in Japan.