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

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

America's first serial killer rests in anonymity.

Remnants of a storybook amusement park hidden behind a strip mall.

An eerie, decaying ghost town destined to fade into the forest.

This recreation of a 19th-century dime museum is full of oddities.

These small house replicas have stood proudly since the 1950s, even as the property has changed hands.

These unique rock formations were created during the Ice Age.

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

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

Home on the Hillside, and home of the first breakfast cereal.

The mortal remains of a Russian prince, priest and paranormal investigator who came to America in 1792.

A remarkable time capsule of American manufacturing deep in Maryland coal country.

An occult-y, historic hotel with the World's Largest Ouija board on the roof.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

The last street in Pittsburgh that's paved with wood.

This eccentric mansion museum holds a impressive collection of rare and automatic instruments.

Where the "World Pinball Champion” is crowned.

10,500 square feet of pinball housed in former dollar store and home to the last playable "Thunderball."

Locals call this magical moss-covered walkway the "Emerald Path."

The overgrown remains of an old rail bridge rise above the valley like ancient Greek ruins.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

A history of tragedy and a pile of eerie stories have contributed to this house's consistent ranking as one of the most haunted places in Ohio.

A wonderful and easily overlooked museum tucked in Ohio's Burke Lakefront Airport.