This landmark cemetery in Boston was created more than 300 years ago.

What else would you call a playground hidden in Alabama's oldest and largest cemetery?

Mine your own precious stones.

This Seattle store is packed with all sorts of curious creatures and creations.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

The site of a tragic massacre that spawned a multimedia franchise.

A registered historic landmark shrouded in unsettling local legends.

Located just behind a quiet residential neighborhood, this is ground zero for the Salem witchcraft hysteria of 1692.

This ghost town was once a cult-like religious utopian settlement.

The ruined remains of a coal mining ghost town are hidden within the woods.

An oasis of calm amid the chaos of the boardwalk, the museum traces the heritage of this beloved beachside amusement park.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

An eatery for UFO seekers on the Extraterrestrial Highway.

A hidden "place of interment for gentlemen."

America's first public mental health facility.

A world-class observatory in the California desert.

A cave dug by a man directed by ghosts to find pirate treasure.

A delightfully quirky blend of oddities spread throughout an old 1920s bank.

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.