A natural rock formation believed to be a cure-all.

A whimsical tower with a spiral staircase, inspired by the Space Age and the Möbius strip.

This small-town museum is dedicated to the original western movie mega-star.

This historic patch of real estate offers a glimpse of colonial Boston.

Trash escaped from a landfill to fill beaches with all kinds of treasure.

This area was once known for being a lawless haven for rough-and-tumble sailors, earning the maritime-themed nickname "the black sea."

Narrowest house in Boston.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

"Mock all and sundry things, but leave the saints alone."

Hut with supplies for shipwreck survivors.

A disastrous shipwreck and a tragic love story.

A lighthouse on a diminutive island was one of the first of its kind to guide seamen home.

Massachusetts memorial to murder victim Elizabeth Short near the spot where she was born.

This headstone-like marker inscribed with three words has been an utter mystery for over a century.

Friction between grains of sand cause a curious "singing" sound.

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

The macabre graffiti spectacle in a quarry in a Massachusetts forest reservation.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

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

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

This historic graveyard monument is dedicated to a tragic victim of witch trial hysteria.

Rumored to have tormented a family in the late 1960s, this toy now resides in a quiet little oddities shop.

Grave of the man allegedly responsible for a series of infamous murders in Boston in the 1960s.