Surrounded by industrial sprawl, a small monument marks the site of William Penn's first landing in Pennsylvania.

The humble field where the first Major League Baseball game was played.

Priceless space junk on display in front of a local Dairy Queen.

What’s a sure fire way to end up in jail in New York in the 1920s? Peddling bad moonshine.

This curved Manhattan building was built to house the opulence of John D. Rockefeller's oil empire.

An exhibition space dedicated to American outsider art created between the 18th and 21st centuries.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

The phrase "the shot heard around the world" was coined after a skirmish at this bridge.

A memorial sculpture to heath hens stands on the spot where the last heath hen, Booming Ben, was last seen.

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

The oldest tavern in Lowell has dedicated fans of its fan.

Not one, but two of Frank Lloyd Wright's architectural masterpieces nestled on the same street.

3,200-square-foot mural inside Dartmouth Library depicts the history of America with images of human sacrifice, ancient gods, and other unspeakable terrors.

Known as one of the most climbed mountains in the world, this barren peak is permanently bald thanks to an anti-wolf fire.

Come for the gun-toting hillbilly madman, stay for the ice-cream loving basketball bears.