This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

The legendary building that needed ghostly approval before being built.

France's most famous cemetery, with some of its most curious tombs.

These fantastically named natural pools look like something out of a Scottish myth.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

An emerald-green grotto just a short trip from Austin.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

On the Oregon coast there is a natural hole that seems to be draining the sea.

Most-visited and most-photographed slot canyon in the American Southwest.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A huge musical instrument played by the ocean.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

A terrific purveyor of natural history objects and curios.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A rare view of a preserved Victorian science museum.

Where America's first doomsday cult awaited the end of the world.

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.