This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

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

These medicine cabinet staples are part of the museum's collection of everyday objects.

The oldest active church in Pennsylvania is also the second oldest Swedish Church in the United States.

This colonial mansion has been home to a staggering number of American historic figures.

A museum commemorating the Donora Smog, which killed 20 people in October 1948 and sparked national outrage over air pollution.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

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

Descendants of this colonial Pennsylvania family still travel from far and wide to visit the 300-year-old home of their Quaker ancestors.

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

A museum and research center dedicated to preserving the history of Rolls-Royce and Bentley motorcars.

Where the oil industry began.

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

Memorializing an American tragedy of massive proportions.

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.

Penn State's giant bug collection.

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

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

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

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

The final resting place of the Hollywood star who came to a tragic end.

Once the most painted on object in the world, this short campus fence is well on its way to being so again.