One of the oldest of its kind.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

The body of St. John Neumann and his collection of hundreds of relics, on display in a Philly church.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

Where the embers of the Big Bang were first detected.

One man's lifelong obsession with death.

Rising out of a clearing in New Jersey's Pine Barrens is an Aztec-inspired monument to the "Lindbergh of Mexico."

Creaky dinosaurs grow in the backroads of Monmouth County, New Jersey.

A unusual sanctuary for abused and exotic animals in South Jersey.

The site of one of history's most indelible and horrific tragedies.

Decades before the scandal, this staircase on the river was a literal "water gate."

A cave in southern Italy adorned with thousand-year-old Biblical frescoes existed in obscurity until fairly recently.

You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.

This leafy estate is worth $18 million and is so grand it has two mailing addresses.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

A wondrous old library overlooking the nation's capital.

Where the U.S. government kept its actual treasure, before Fort Knox.

Once the supplier for noteworthy projects like the National Cathedral, this old brickworks now lies abandoned.

The famous abolitionist’s preserved estate is one of Washington's finest monuments to its great Black citizens.

A historic ruin just 20 feet away from a busy highway onramp.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."