With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

This former tuberculosis treatment facility now stands at the center of a public park.

This tiny museum kept in a B&B laundry room holds the death mask of notorious bank robber Pretty Boy Floyd.

Superfans of The Shawshank Redemption can take a driving tour of most of the films real locations.

A retro walk through the history of the tube.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

Inside this wonderland of weird, visitors are treated to a collection ranging from skeletons to haunted artifacts.

The angel of death appears to weep black tears at this grave marker.

A former plant in one of the hubs of U.S. steelmaking has been turned into this museum celebrating the history of American industry.

Headquarters of the legendary clairvoyant's readings, spiritual hospital, and massage school.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

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

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

This brightly made over hotel hides decades of suicide, serial killers, and mysterious deaths.

A museum dedicated to the alleged Roswell Incident.

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

Inside this small museum resides a strange mix of miniature collections passed down over time.

Its incredible collection preserves 170 years of sewing machine history.

No matter what the plaque under this massive legume says, this is not the world's largest peanut.

Along the historic Mother Road is an old gas station with a secret counterfeiting past.

An acoustic anomaly with a mysterious cause.

An Arizona museum with a collection of pharmaceutical oddities, including a jar of a gangster's chewed gum.