A museum of anything and everything Stooge.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

This historic old movie house was the scene of one of the Blob's most iconic attacks.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

A local prank turned town icon.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

An Irish Memorial commemorating those who perished due to potato blight.

One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

The body of St. John Neumann and his collection of hundreds of relics, on display in a Philly church.

There aren't too many operational funiculars around, but Pittsburgh has two!

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

A field of nothing but boulders which resembles a giant's gravel driveway.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

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.

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

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

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

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

In which a local geological marvel becomes a quaint roadside attraction.

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

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