A spring-fed pool so deep it's used for scuba diving as well as swimming.

This Gothic castle-like portal is a testament to the amazing craftsmanship of the navvies who built the railway tunnel.

This road winds through the steep coastal cliffside offering spectacular views for those who brave the drive.

A mysterious ruin shrouded in more folklore than fact.

This historic estate on the east shore of Lake Tahoe was home to an eccentric millionaire (and his pet elephant, Mingo).

This ordinary street was made infamous by a legendary visit from the devil.

The little-known second castle that William the Conqueror built in York.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

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

A beloved carnival gets a modern makeover in Los Angeles.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

After visiting hours, this picturesque waterfall is essentially turned "off" to be used for hydroelectric power.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

You haven’t properly toured a winery until you’ve slept in an actual wine barrel.

Unknown to many, this sparkling turquoise lake hides amid Oregon's snowcapped mountains.

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

The ruins of an abandoned church loom within a picturesque Ukranian village.

This candy-colored storybook village originated as a 19th-century Methodist campground.

Live data is transmitted from the Atlantic coast to instantly recreate the ocean waves in this fountain at the NOAA headquarters.

This whimsical fountain pays tribute to Toronto's four-legged friends.

A charming beach town in Turkey captures all the colors of the rainbow.

This elegant neoclassical garden is a peaceful oasis in the middle of the Nepalese capital.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.