Century-old shop, specializing in Occult products.

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

An ancient system of freshwater caves filled with animal bones, including that of species long-extinct.

This Philly landmark has a giant butterfly pavilion, three floors of insect displays, and withstood a $40,000 heist.

America's first serial killer rests in anonymity.

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

The final resting place of one of the United States's greatest poets.

The abandoned coal loading dock is a canvas for unsanctioned art.

The first American axe throwing club.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

A storefront museum in Asbury Park honoring the Jersey Shore’s deep history of mystery—including the Jersey Devil.

Spectacular mineral formations fill these caves, which have been used for everything from smoking meat to stashing illicit liquor.

Thousands of jack o'lanterns light up Halloween at this historic West Virginia home.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

A small storefront museum explores the history and myth of West Virginia's famous urban legend.

The museum calls itself the "National Museum of the Paranormal" and is full of eerie oddities.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

A museum befitting the city responsible for supplying the majority of the world's LSD.

Its buzzing collection honors vibrator history.

Everyone remembers Laurie Strode from Halloween, but this is the house where most of the blood was shed.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The Boston square dedicated to the dark poet who was born nearby.