Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

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

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

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

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.

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

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

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

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

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

An abandoned stretch of highway, deteriorating next to the operational one.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

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

Visit a fourth-generation farm and museum dedicated to everyone's favorite fungi.

Nothing says indulgence like a 1,500-pound chocolate castle.

This shrine to McDonalds' most iconic sandwich holds a 14-foot tall burger.

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

A display of magnificent stained glass windows is the first exhibit of its kind.

A Museum of Holography frozen in 1974.

In a quiet north Chicago neighborhood rests a stunning relic of the golden age of earthenware design.