A former plant in one of the hubs of U.S. steelmaking has been turned into this museum celebrating the history of American industry.

The god of wine stares out at passersby on this busy Pittsburgh thoroughfare.

The Pennsylvania shopping center was once the setting for the 1978 film, "Dawn of the Dead."

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

North America’s largest collection of horological devices and home to a colossal clock with a dizzying array of features.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

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

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

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

An outlandish shoe shaped house built by an eccentric millionaire.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

Step into a pastel time capsule where candy is truly dandy.

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

Yo, Adrian!

The first American department store, and home to the largest operating musical instrument in the world.

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.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

Delicate Wurlitzers, creepy clowns, and The Noid all share space in this insane explosion of kitsch history.

This little museum in the town where zombies were born celebrates the living dead.

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

A beautiful oddities shop crammed with strange and morbid curiosities.

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