The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

The hippo that stands on this university campus was once a drunken flea market purchase.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

Behind an abandoned storefront is an example of pioneering 1930s gas station architecture.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

A layered tribute to the work of mosaicist Isaiah Zagar.

Mural made of 100,000 pieces of hand blown glass, and one of the largest glass murals in the US.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

The first American department store, and home to the largest operating musical instrument in the world.

This elaborate towering structure was once famed for its revolutionary height.

A daily replay of the experiment that proved the rotation of the Earth.

Yo, Adrian!

The world’s first penitentiary, meant to be humane, drove men insane.

How this Pine Barrens hill got its name is uncertain, but on a good day the view from the fire tower is crystal clear.

Step inside Lucy, the world's largest "elephant."

This 25-foot-tall gorilla made his way from the Wildwood boardwalk to a Pine Barrens gas station and deli.

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