America's first serial killer rests in anonymity.

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

The fastest transatlantic ocean liner sat abandoned in a Philadelphia shipyard for decades.

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

Surrounded by industrial sprawl, a small monument marks the site of William Penn's first landing in Pennsylvania.

An outlandish shoe shaped house built by an eccentric millionaire.

An industrial waste tourist attraction.

These unique rock formations were created during the Ice Age.

Don't get it twisted: This is the oldest pretzel bakery in the United States.

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

One of the few remaining covered bridges in Lancaster County.

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

The first of Lancaster's "rural cemeteries."

The home of possibly the least-loved U.S. president stands as a sort of unpopular Monticello.

This iconic Lancaster everyman has been reading the same story since 1980.

In this cemetery stands the country's first public crematorium.

The slate extracted from these Pennsylvania quarries was once hailed as the finest in the world.

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

One of the oldest Catholic churches in the U.S., situated just east of Gettysburg.

Home of the only civilian casualty at the Battle of Gettysburg.

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

One of Gettysburg’s least visited battlefield memorials is off the beaten path, but worth a visit.

This recreation of a 19th-century dime museum is full of oddities.