A larger-than-life statue of America's favorite sundae marks the place it was invented.

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

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

Contrary to what one might expect, ice forms inside this small cavern during the summer and melts during the winter.

This jail which was in service for over a century is now open for curious visitors.

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

Once on display alongside a giant Gumby, it’s as tall as a nine-story building when fully extended.

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

Its vintage camera collection gives a snapshot of the past as viewed through a photographic lens.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

One man's real life disfigurement inspired a lasting local legend surrounding an eerie tunnel.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

Pennsylvanian mass grave and possibly mass murder.

It would take 35 firetrucks to fill this enormous glacial pothole.

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

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

A macabre farm reserved part of its 222-acres for dead bodies, all in the name of science.

The ruined remains of a coal mining ghost town are hidden within the woods.

The graffitied ruins stand hidden within the Pennsylvania woods.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.