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

The oldest active church in Pennsylvania is also the second oldest Swedish Church in the United States.

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

This beloved marketplace mascot poops money and grants good luck.

One of the oldest of its kind.

The abandoned coal loading dock is a canvas for unsanctioned art.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

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

A bit of retro transportation flair preserved in the world's largest department store.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

Elevated freight railway turned wildly successful urban park.

On the Hudson resides one of the largest clocks in the world.

Step inside Lucy, the world's largest "elephant."

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

What is it about mushrooms that makes people wish they lived inside of them?

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

Century-old shop, specializing in Occult products.

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

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

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

A daily replay of the experiment that proved the rotation of the Earth.

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

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

This elaborate towering structure was once famed for its revolutionary height.