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

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

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Tucked in the back of this amazing antique store is an important piece of medical history.

The site of one of history's most indelible and horrific tragedies.

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

This Boy Scout retreat acted as "Friday the 13th"'s original Camp Crystal Lake.

One man's lifelong obsession with death.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

Another in a long tradition of legends regarding infernal seats.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

European castle ruins in an American state park are actually the product of death and grief.

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.

A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

The quirky collection includes treasures like Elvis' underwear, Bob Barker's toothbrush, and hundreds of sock monkeys.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

Self-built house and sculpture park where the creator can still be seen in a glass coffin.

Massive still life just off the highway in Kansas.

Home to Hollywood history and a very special salt crystal.

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.