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

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

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

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

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

An outlandish shoe shaped house built by an eccentric millionaire.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

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

A failed piece of Orientalism has become the proud symbol of a community.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

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

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

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

The famous bell was secreted away and hidden in a church in Allentown during the British occupation of Philadelphia.

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