A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

The land is home to swimming ponies and a legendary 18th-century treasure.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

An outlandish shoe shaped house built by an eccentric millionaire.

Pennsylvania's own Roswell-style UFO mystery.

Ancient petroglyphs discovered only after a massive fire swept across Michigan in the 1880s.

A miniature world of concrete and stone in Springfield, Ohio.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.

Abandoned former poorhouse, bible college, and haunted house in an Ohio hamlet.

Take a drunken tour inside the world's largest known geode.

In the early 1800s, surgery was also a show.

The first American department store, and home to the largest operating musical instrument in the world.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

World's first "penitentiary," meant to be humane, drove men insane.

An old abandoned mining town in The Adirondacks where Theodore Roosevelt first learned of the shooting of President William McKinley.

Why have you never heard of the second most popular tourist site in New York?

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

A museum dedicated to the history & joys of the trail & your best chance to see hikers throwing up ice cream.

A toxic ghost town sitting atop a massive coal fire.