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.

America's oldest drive-in movie theater has been in continuous operation since 1934.

The lasting remains of the region's once booming cement industry.

Town full of spiritualists, some of whom are mediums, is still in full swing after 130 years.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

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

A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.

An extraordinary collection of vampire-themed antiques lurks on the second floor of a store.

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

A sacred collection of indigenous rock art.

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

These hooded graves are the only of their kind in the United States.

Construction uncovered this trove of fossils, which visitors are welcome to add to their own collections.

At this small shop off a dirt road in the forest, the specialty is eel the owner caught and smoked himself.

An abandoned castle owned and ignored by Masons carries a cursed history.

Whimsical artist house in the New Jersey woods.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

The largest collection of Frazetta originals in the world.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.