A planned settlement in Pennsylvania once housed the aristocratic refugees of the French Revolution.

Featuring the largest CinemaScope screen in Pennsylvania, this drive-in has entertained moviegoers for more than half a century.

This decommissioned surface-to-surface missile resides outside the American Legion Post in Pennslyvania.

The graffitied ruins stand hidden within the Pennsylvania woods.

This demolished goliath of American industry once loomed over the depressed town it once made thrive.

Once on display alongside a giant Gumby, it’s as tall as a nine-story building when fully extended.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

The oldest surviving botanic garden in the United States.

A farm in New Jersey grew a most unusual crop for AT&T's testing purposes.

These unassuming lighthouses have seen the first reading of the Pledge of Allegiance, the first wireless transmission, and more than one mystery.

The final resting place of many of New Jersey's most famous residents, including U.S. history's most in-vogue antagonist, Aaron Burr.

A playground inspired by differential calculus dangles from the ceiling of the Liberty Science Center.

Historic town settled in the 19th century because of its convenient location along a popular coal transport route.

Marie told fortunes from her small stand on the Boardwalk for decades, including to a young Bruce Springsteen who would busk outside her booth.

Where the embers of the Big Bang were first detected.

A historic grist mill and active sluice on the Black River.

This tiny structure was built by the creator of the Brooklyn Bridge.

The remains of an old sawmill, gristmill and the surrounding industry dating back to the 18th century.

Once the world's largest reinforced concrete structure, this abandoned bridge now beckons urban explorers.

A world-class collection of mechanical musical instruments and automata.

This ominously named New Jersey street seems to be attracting over-the-top legends of its own making.

Destructive children, start your engines.

Tucked behind New Jersey's abandoned Gingerbread Castle lie the eerie ruins of a once-flourishing paper mill.