An abandoned castle owned and ignored by Masons carries a cursed history.

The largest of London's subterranean rivers and once a mad, bad center of London life.

The atmospheric road was never meant to be so creepy.

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

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

A battle between nature and architecture in the Cambodian jungle.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

A giant Troll lurks under one of Seattle's oldest bridges.

A spectacular cave and a beguiling lake.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

New York's oldest magic store.

Fine dining in the bizarre world of Lewis Carroll.

The first declared National Monument in the United States.

Continuing the tradition of the dime museum in style.

Mysterious rocks that ring musically when struck.

Rising from the sea like a stone monster.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

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

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Odd outsider art installations surround a Gold Rush-era ghost town.

A submerged archeological park still holds the wonders of a Roman Sodom.