Memorializing an American tragedy of massive proportions.

It may appear to be a fancy junk yard, but each item has a story to tell and a lesson to impart.

Where the oil industry began.

A diorama of the Civil War, fought by cats.

The first of Lancaster's "rural cemeteries."

A preserved 18th century homestead in Western Pennsylvania marks the spot where the Whiskey Rebellion began.

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

A retrofuturistic art installation in the Pittsburgh Airport.

America's smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.

Penn State's giant bug collection.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

"Where the ducks walk on fish."

The residents of this ominous-sounding street in Pennsylvania liked its name so much they fought to keep it.

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

An occult-y, historic hotel with the World's Largest Ouija board on the roof.

It marks the spooky spot where the bodies of two young boys were found in the 19th century.

The site of the little-known Pennsylvania battle that sparked the Seven Years' War.

This giant disembodied horse head seems to balance impossibly on its nose.

This icon of the Atomic Age now lays dormant.

The final resting place of two members of the infamous Doan gang, notorious outlaws and Revolutionary War Loyalists.

A living maritime paradox still floats in the same lake where it was built and resurrected... or was it?

Pittsburgh's literal underground railroad.

An otherwise quiet campground becomes a bustling medieval town for two weeks every year.

Intricate storybook scenes are tucked inside these shadow boxes, which are tucked inside a library in the Pocono Mountains.