This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

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

Two insane asylum bodies embalmed by an amateur.

The highest point in Maryland is only accessible by hiking through another state.

America's post-nuclear-attack chambers of Congress.

One of the last active volcanoes on the Eastern seaboard.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

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

In the woods of New Jersey lie the ruins of a munitions village abandoned after World War I and the remnants of a 1920s wooden racetrack.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

An ideal wedding spot that is almost too ideal.

A field of nothing but boulders which resembles a giant's gravel driveway.

This park contains a number of standing stones meant to heal and inspire.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

The Home and murder site of the witch of Rehmeyers Hollow.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

A park full of outsider art, created by college students studying outsider art.

A historic covered bridge is but one example of an oddly prevalent American urban legend.