Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

The land is home to swimming ponies and a legendary 18th-century treasure.

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

This monument marks the beginning journey of a wounded soldier's leg that ended up almost two states away.

The beloved, war-tested mascot of a Union regiment graces their battlefield monument.

An American flag was erected for every day that passed during the Iranian Hostage Crisis.

An eccentric priest's tribute to George Washington, this chapel tells the story of the American Revolution.

Descendants of this colonial Pennsylvania family still travel from far and wide to visit the 300-year-old home of their Quaker ancestors.

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

This dramatic rail curve was once the target of a failed Nazi attack.

Steepest flood safety railway in the entire world.

These lush botanical gardens employ the most purrfect pest control force.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

This might just be the TARDIS of bookstores.

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

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.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

A local prank turned town icon.