One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

Japanese island famous for poison gas and fluffy bunnies.

This stretch of the River Severn where large waves flow against the current is the birthplace of river surfing.

World's strongest whirlpool.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

There are eight natural springs around town, each with a slightly different taste.

A boat ride through utter darkness, lit only by headlamps, reveals an emerald green pool locals believe is sacred.

A mysterious crater-like pond has a spooky tendency to empty and fill with complete disregard to rainfall patterns.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

During the summer, surfers in Alaska take advantage of this inlet’s unusual water patterns.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

The water swaps direction twice a day, whipping into a frenzy of whirlpools and rapids.

Science fiction's grandfather has a fittingly marvelous tomb.

This crack in France's seaside cliffs once hid a sinister secret.

This unusual lava tube spouts seawater during high surf.

Bioluminescence in the reefs of the Maldives causes the sea to glow like a starry night sky.

Hundreds of enormous icebergs drift through this waterway every year.

Legend says one of the world's largest marine geysers is actually a whale that got wedged within the rocks.

The frozen bubbles that form on the icy surface of this Canadian lake contain enough methane to create a small explosion.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

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

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.