Steepest flood safety railway in the entire world.

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

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

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

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

The corporeal remains of Napoleon III's dentist rest under this 15-story obelisk.

This sculpture of a fisherman spent six years at the bottom of the Schuylkill River.

Where the famed frontiersman was born, raised, and survived Quaker intrigue

In the parking lot of a fast food restaurant, a statue memorializing a prolific bull elephant.

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

This monument commemorates the only American soldiers to have directly fought Russians during World War I.

Amid the sprawling Defense Intelligence Agency Headquarters is one of Washington's least accessible museums.

A tunnel with windows, so you don't miss out on the impressive views.

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

The unusual patterns in this rock formation result from two distinct modes of weathering.

The first free library in Georgia features an original Tiffany stained glass window of Mary Willis.

Hundreds of numbered stakes hidden in the woods mark the graves of the lost souls of a nearby asylum.

This impressive scene portrays the elusive forest giraffe of Central Africa.

This morbid scene depicts the Darwinian drama of death on the African savannah.

This magnificent herd of stampeding elephants has been frozen in time for over a century.

One of the most dazzling dioramas at the American Museum of Natural History is also one of the oldest.

This Upstate New York park squeezes a lot of history into its two-acre triangular space.

One of the only known surviving coconut palm trees in the entire state.

A nearly 100-year-old dining car in upstate New York embodies the golden age of roadside dining.