Outsider art meets paleontology at this roadside reptile repository.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

This maze-like slot canyon is a unique gem within an already fascinating geological area.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

A hidden piece of Altoona's railroad history in a long-forgotten abandoned town.

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

The graffitied ruins stand hidden within the Pennsylvania woods.

This semi-spooky remnant of an abandoned hotel provides fantastic views.

This abandoned iron furnace was one of the first to use coke—a type of high-carbon fuel—to make iron.

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

Long hidden under grime, the politically radical murals of a little known Yugoslavian master are finally getting their due.

This Old Testament garden features 100 plants from biblical times.

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

A glittering Thai Buddhist temple in suburban Pennsylvania.

An eccentric priest's tribute to George Washington, this chapel tells the story of the American Revolution.

This shrine dedicated to the Virgin Mary is also a tribute from a mother to her fallen son.

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

A toxic ghost town sitting atop a massive coal fire.

Where America's first doomsday cult awaited the end of the world.

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

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

An eerie, decaying ghost town destined to fade into the forest.