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

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

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.

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

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

Huge masonic hall in Philadelphia with lavishly themed rooms.

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

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

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

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

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

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

Mysterious rocks that ring musically when struck.

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.

A layered tribute to the work of mosaicist Isaiah Zagar.

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

World's first "penitentiary," meant to be humane, drove men insane.

A Northwoods sporting competition that shows lumber jacks doing much more than cutting down trees.

Detroit’s Eastern Market has been transformed into an outdoor museum with colorful murals that address social issues and symbolize the city.

Glass and concrete building designed by Albert Kahn.

The collection of ceremonial and cultural objects spans many countries and hundreds of years.

This former industrial site has transformed into a community sculpture garden that hosts monthly Full Moon parties.