The singer, actor, and activist lived here during his final years, and now it’s a museum dedicated to his legacy.

The oldest surviving presidential residence in the United States.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

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

Now the final resting place of prominent artists and musicians, it was originally founded to separate the rich from the poor in death.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

The oldest active church in Pennsylvania is also the second oldest Swedish Church in the United States.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

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

The final resting place of two members of the infamous Doan gang, notorious outlaws and Revolutionary War Loyalists.

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

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

An Irish Memorial commemorating those who perished due to potato blight.

One of the oldest of its kind.

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

A daily replay of the experiment that proved the rotation of the Earth.

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

The abandoned coal loading dock is a canvas for unsanctioned art.

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

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

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

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.