An abandoned munitions storage facility with a rich architectural history.

Once the extravagant escape of the Ford family, this enigmatic ruin now stands as a haunting reminder of its former glory.

Small caves once used as a hiding place for some of those accused during the Salem Witch Trials.

Visit the grave of America's most prominent paranormal investigators and self-proclaimed demonologists.

The secret city built by the Manhattan Project.

A picture-perfect town, perfect for blowing up.

The contents of this safe survived a 37-kiloton nuclear bomb.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

A facility built in 1992 for an underground nuclear test remains in place today.

This private island is still in the family after a 400-year history including a witch hunt and a pirate.

Walk through Czech history in Prague's largest graveyard.

Two stunning 17th-century libraries and a cabinet of curiosities.

The second-oldest garden cemetery in the U.S. was also a college brainstorm spot of Stephen King.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

The mystery of the Putim Ossuary involves a tricorn hat.

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

The real-life site of Ichabod Crane's infamous gourd attack.

Where mountaineers were checked for lice before entering the city.

Hidden in the hills of Western Pennsylvania lies one of the best-kept ghost towns in America that you can legally visit.

There's a crumbling old mansion inside the Smithsonian National Zoo.

Order cookies baked by cloistered nuns in a 400-year-old monastery.

Long before the Battle of Gettysburg occurred, dinosaurs roamed the area and left their footprints on this bridge.

Could this grave be the true resting place of legendary gunfighter "Doc" Holliday? Unclear.

This museum started by a curious collector is now a place for believers and skeptics alike.