A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

An astounding collection of medical specimens, including bits of President Lincoln.

A double agent hid information for the Soviet Union beneath this bridge for more than 20 years.

Volcanic stone sentinels stand watch at a Korean Bell Garden in Virginia.

The only surviving 19th-century water-powered mill found in the Washington, D.C. area.

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

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

This former Cold War missile control site played an important role in the creation of GPS.

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

The whole world in one water tank.

A well-worn trail through thick woods in northern Montgomery County leads to an old schoolhouse.

The largest cemetery for enslaved people in Loudoun County was almost lost to history, if not for the research of a minister.

Named for a Greek oracle that interpreted the words of Zeus, this beautifully-restored manor home was once home to the architect of the Marshall Plan.

Rumors persist that a bottle of whiskey is sealed within this Demijohn-shaped adornment.

A Civil War Museum with some notable medical antiques.

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

One of the only memorials dedicated to journalists who died in combat.

This shale formation along the Appalachian Trail once inspired the third president of the United States.

Built in the 1850s, this church was of the first five churches constructed in Harper's Ferry.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

The Grand Ole Opry's big voice came from a small home in rural Virginia where she was eventually buried.

Extraordinary objects lurk in this quintessential regional museum.

Outsider art meets paleontology at this roadside reptile repository.