Inside this 150-year-old barn turned antique shop is a vast array of items for curios hunters.

This historic furnace was once used to produce cannonballs during the Civil War.

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

The only statue of its kind to commemorate Washington's beginnings as an officer of the British Colonial Militia.

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

The oldest surviving presidential residence in the United States.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

A pyramid commemorates the birthplace of James Buchanan, the 15th president of the United States

The legacy of baseball great Roberto Clemente is preserved in a retired Pittsburgh fire station.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

Each step is a mere four inches tall, said to be measured by the stride of a woman wearing a hobble skirt.

Built in the 1970s, this curious modular home found new life as a sundae-shaped ice cream stand.

The humble field where the first Major League Baseball game was played.

Dozens upon dozens of boulders engraved with scripture tell the story of one man's troubled life.

Where the oil industry began.

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

Penn State's giant bug collection.

"Where the ducks walk on fish."

Featuring the largest CinemaScope screen in Pennsylvania, this drive-in has entertained moviegoers for more than half a century.

A legendary boxing venue and ring featured in Rocky V.

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

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

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