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

Behold the rickety glory of one of the oldest roller coasters still standing.

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

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A small granite block at this monument's base is the only part of Lincoln's Tomb outside of Illinois.

A local prank turned town icon.

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

An outlandish shoe shaped house built by an eccentric millionaire.

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

The Cold War-era "underground Pentagon" is a sprawling subterranean hideaway for the Defense Department.

A diorama of the Civil War, fought by cats.

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

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

The Home and murder site of the witch of Rehmeyers Hollow.

A small museum along the Susquehanna River is home to a rich collection of Native American artifacts.

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

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

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

The first of Lancaster's "rural cemeteries."

The oldest farmer's market in America is so ancient it was approved by the King of England.

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

A failed piece of Orientalism has become the proud symbol of a community.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.