The site of a fallen tree that protected Americans from British forces during the American Revolution.

This elaborate tunnel is the first structure composed of cast concrete in the United States.

A temple belonging to the largest Buddhist order in South Korea nestled in the middle of New York City.

This floating sculpture of ice is a poignant reminder of nature's power.

A tiny park in the middle of some big power politics.

Ancient serpentine sacrifice holder that has stood the test of time.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A fountain standing as a testament to a doomed alliance.

A marvel of Byzantine engineering under the streets of Istanbul.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

No monkeying around, this fountain was really named after the classic sci-fi film.

The preserved house of a jazz legend still echoes with his music.

Chefs from Tibet's Kham region offer steaming meat pies and noodle soups in this nook behind a jewelry store.

Nine nice parcels of land along a flight path offer a quiet respite... until a plane soars overhead.

The very first subway station in New York City is beautiful, decked out in chandeliers, and ... abandoned?

The pioneering photographer's prints are immortalized inside her childhood home.

Once America's longest-manned military fort, now an abandoned hulk.

Hear the tales of New York's most notorious criminals.

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

A tribute to the hard-working men and women of Grumman, who crafted F-14 fighter jets.

The site of a tragic massacre that spawned a multimedia franchise.

A historic lighthouse steeped in rumors of ghost and pirate stories.

Nikola Tesla's former home contains an homage hidden from plain sight.

Unlock the secrets of the conjuring arts.