Take a stroll through this centuries-old tunnel of enormous moss-hung evergreens, nestled among the grounds of America’s first public sculpture garden.

A charming monument to a very special dog.

The remains of a chapel created for convenience.

One of the oldest of its kind.

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

An almost life-sized elephant named Ms. Ellie greets visitors at this jumbo-themed museum.

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

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

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

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

The largest piece of cut lead crystal adorned a grave for 75 years and is now the shining star of a glass museum.

This rural community has attracted both scientists and techno-refugees due to its federally-mandated lack of technology.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This abandoned train tunnel has been the subject of countless ghost stories for years.