A beautiful botanical garden in the heart of the Natural State.

The only natural gorge in metropolitan Tokyo, with lots of greenery and ancient burial chambers.

Direct access to a gold mine showing the boom and bust of Australia's Victorian gold rush.

Once a thriving town of 100, Argonne was abandoned around 1970.

A 4th-century Roman church complete with a hidden underground cave.

An ancient theatre in the "little Rome of the Alps."

Bodie's 20th-century rival was a paragon of respectability and calm—but the mines eventually ran dry.

A small rural town hides Indiana's tallest waterfall.

Smack-dab in Campania’s volcanic fields, this scenic lake was once thought to be the gate of hell.

Italian horror legend Dario Argento’s own shop hides a sinister museum-dungeon in the basement.

A spring and an enigmatic cabin lie in a ponderosa pine forest in the heart of the Desert National Wildlife Refuge.

Once upon a time in Kamakura, a five-headed dragon fell in love with an Indian water goddess.

This park is home to a massive bird sanctuary.

Sand dunes from a glacial lake are preserved in this woodland park.

Visit the grave of America's most prominent paranormal investigators and self-proclaimed demonologists.

This lovely hilltop tower was specifically built to withstand 100 MPH winds.

Now home to hardy plants, these sand and gravel dunes once held back a massive prehistoric lake.

Who knew the Devil's domain was a hot spot for tubing?

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

Hidden in a cave on a small Taiwanese island, a stalagmite reported to look like the bodhisattva Guanyin.

Spend the night in this former asylum for the incurably insane, which claims to be one of the most haunted places in the United States.

Legend has it these caves were created by a deity called Ogba, who is said to live inside the winding subterranean caverns.

Among the may artifacts on display is a clock made of 50,000 individual pieces of wood.