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

The site of one of history's most indelible and horrific tragedies.

The final resting place of the Hollywood star who came to a tragic end.

An allegedly cursed tree represents a town's reckoning with a racist past.

In which a local geological marvel becomes a quaint roadside attraction.

A park in a small Pennsylvania town is home to an original sculpture by one of its native sons, legendary artist and activist Keith Haring.

A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.

A smaller model of the Da Vinci sculpture that took 500 years to come to life.

The famous bell was secreted away and hidden in a church in Allentown during the British occupation of Philadelphia.

One of the world's largest model railroads is a mind-boggling achievement.

A "house to which to flee" for settlers in colonial Pennsylvania.

New Jersey's last historic covered bridge was rebuilt from pieces of the original 19th-century structure.

The site of a tragedy in 1908 that claimed the lives of 171 people and changed fire safety laws across the state.

An extraordinary collection of vampire-themed antiques lurks on the second floor of a store.

This collection of odd proofs of concept is like taking a walk through the imagination of a Victorian engineer.

A pride of the state, this working museum crafts pottery mosaics in the style of Pennsylvania's earliest European settlers.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

Inside this 150-year-old barn turned antique shop is a vast array of items for curios hunters.

The residents of this ominous-sounding street in Pennsylvania liked its name so much they fought to keep it.

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

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

This Philly landmark has a giant butterfly pavilion, three floors of insect displays, and withstood a $40,000 heist.

The oldest surviving presidential residence in the United States.

Where America's first doomsday cult awaited the end of the world.