The school tested mustard gas for the U.S. Army during World War I.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

This suburban house is made of dirt, and almost sparked a revolution in home construction.

The ruins of this long-abandoned unsuccessful gold mine can still be found.

Standing for over 200 years, the abandoned home of a Revolutionary War hero and later a succession of prison superintendents.

An out-of-place Air Force radar dome is all that denotes this park as a former missile launch site.

Burke’s oldest cemetery also houses the victim of the county's grisliest murder.

A decaying garage hidden amid the dense forest is all that remains of a once-prosperous dairy farm.

A lone historical marker off the highway and scattered debris are all that remain of this Cold War-era missile site.

This Virginia railway overpass is said to be haunted by a serial killer in a rabbit costume.

This museum sits on the site of a decommissioned military communications base.

Hear, smell, see, taste, and touch history at this immersive Civil War hospital.

This pre-Revolutionary War grist mill ground corn and flour for soldiers in seven American wars.

The cinder cone volcano with a less than complimentary name.