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

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

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

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

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

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

A completely round house designed for the Atomic Age.

Destructive children, start your engines.

One of the oldest active carousels in the country—but it might be missed by all but the keenest-eyed boardwalk strollers.

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

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

The rusting remains are visible sticking out of the waters of the Delaware Bay.

Come for the Italian food, stay for the taxidermy and giant statues.