Memorializing an American tragedy of massive proportions.

This park contains a number of standing stones meant to heal and inspire.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

The oldest farmer's market in America is so ancient it was approved by the King of England.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

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

The oldest surviving botanic garden in the United States.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

The graffitied ruins stand hidden within the Pennsylvania woods.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

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

This icon of the Atomic Age now lays dormant.

This sculpture of a fisherman spent six years at the bottom of the Schuylkill River.

This massive sycamore tree has been labeled as one of the largest in the state.

Beautiful views of the surrounding hills and birds of prey can be found at this sanctuary.

Old neon signs from the City of Brotherly Love provide a snapshot of the city’s evolution.

These small house replicas have stood proudly since the 1950s, even as the property has changed hands.

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 well-preserved example of an early industrial operation in the northeastern United States.

A monument to an Irish secret society thought to be responsible for a string of violent attacks in Pennsylvania coal mines.

A museum dedicated to the history of electric interurban transit near the home of the first electric trolley system in the United States.

The train collection of an eccentric New England seafood mogul is now a National Historical Site.