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

This beloved marketplace mascot poops money and grants good luck.

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

Alexander Hamilton’s creation caused quite a bit of controversy.

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

One of Philadelphia's largest murals resides hidden under this bridge.

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.

Destructive children, start your engines.

An unusual assortment of steerable wooden sleds is on display in a library in New Jersey where they were first invented.

All that remains of the once-booming chain is a single orange-roofed restaurant.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

The "Seinfeld" diner.

Try not to get slimed in Tribeca.

These 20-foot sculptures will help guide you from the local train station to the local sculpture garden.

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.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Huge masonic hall in Philadelphia with lavishly themed rooms.