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

One of the first commercially successful anthracite-powered iron-making operations in North America.

A soon-to-be-forgotten roadside spectacle loaded with local lore.

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

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

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

This original Mason-Dixon line cairn placed in the 1760s was put in the wrong location because of the gravitational pull of the Allegheny Mountains.

This large stone residence served as a field hospital during the Battle of Gettysburg between stints as a tavern.

George Washington, Alexander Hamilton, and Benjamin Franklin all slept at this humble inn.

This national landmark is also home to a massive treehouse.

The Paul Bunyan of the steel industry.

A sacred collection of indigenous rock art.

Outside a small brewery, a Gothic fountain that once provided water to thirsty horses.

One of the few remaining covered bridges in Lancaster County.

This covered bridge was used by both Union and Confederate troops during the Battle of Gettysburg in 1863.

Considered by many to be a local landmark and treasure.

An abandoned incline railway site is now a green space with six acres of trails connecting hilltop neighborhoods.

Hidden behind an empty field resides this early 19th-century cemetery.

Long before the Battle of Gettysburg occurred, dinosaurs roamed the area and left their footprints on this bridge.

The meeting of the northwestern corner of Delaware, the northeastern corner of Maryland, and the southern edge of Pennsylvania.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

These hooded graves are the only of their kind in the United States.