This sandwich shop has a century-old elevator behind a sheet of plexiglass.

Ship skeletons haunt Baltimore's waterways.

A water pumping station disguised as a residential home to assuage concerned neighbors now tricks most passersby.

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

A swimming hole in the historic industrial quarry that supplied the marble for the Baltimore Washington Monument.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

Built by the patriotic residents of Boonsboro in a single day.

A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

The remains of a historic plantation nestled in between a parking lot and the rental car return at Reagan National Airport.

An iconic steel and chrome diner from the 1940s left empty for nearly 20 years is in danger of being demolished.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

Easter in Westminster may be the only time and place to behold Edgar Allen Poe made entirely of Marshmallow Peeps.

Marie told fortunes from her small stand on the Boardwalk for decades, including to a young Bruce Springsteen who would busk outside her booth.

She stares out across six lanes of traffic, clutching a musket and infant with determination.

A completely round house designed for the Atomic Age.

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

This poor little statue is the most vandalized memorial in Washington.

One of the oldest anatomical theaters in the U.S. still in use was once the site of an infamous cadaver riot.

A larger-than-life statue of America's favorite sundae marks the place it was invented.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

This Old Testament garden features 100 plants from biblical times.

A small Richmond island dotted with the remnants of hundreds of years of history.

This historic Pittsburgh tennis complex is a rare example of natural red clay courts.

This 16-foot, intricately detailed model of the Gearing-class destroyer has been called the most detailed model ship ever built.