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

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

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

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

This beloved marketplace mascot poops money and grants good luck.

The oldest surviving botanic garden in the United States.

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

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

A celebrity from the late Cretaceous period.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

This pharmacist and his patient greet visitors to the National Community Pharmacists Association.

This unique historical monument features large concrete spheres designed to resemble fallen stars.

A historic ruin just 20 feet away from a busy highway onramp.

This grave marks the passing of a historic Jane Doe whose identity remains a mystery to this day.

The narrowest house in America is seven feet of pure spite.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

A clone of a cloned tree that was so important it allegedly had its own guards.

The oldest continuously operating fish market in the United States.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

This nine-story building is the oldest standing skyscraper in D.C.