This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

Dr Barnes' $25 billion private collection of art and arboretum.

This verdant, tree-lined Reykjavik graveyard is both enchanting and eerie.

Climbing Iceland's highest peak on the rim of the Oræfajökull volcano.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

Staves, storm-calling, and of course, necropants.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

A cave on the Maryland border where civilians took refuge during the bloodiest battle of the Civil War.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

This abandoned Victorian-style house was built in 1884.

Bizarre Cavern.

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

This free, take-a-book shop seems like a trick but isn't.

A labor of love built by local hang-gliding enthusiasts, this ideal launch spot was outlawed by the authorities and has since been largely abandoned.

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

The Home and murder site of the witch of Rehmeyers Hollow.