Dedicated to a veritable Houdini among P.O.W.s who escaped imprisonment on five separate occasions.

A brass and marble scale model of the solar system embedded in the concrete.

The only labyrinth within the city of Alexandria.

Known as the most resilient water tower in the region.

Evidence of a long-ago crush remains scratched into the glass at this historic Maryland House.

A piece of telecommunications history.

This monument pays tribute to the musicians responsible for creating the Sound Of Asbury Park.

This local mascot has been a presence in the area since the 1960s.

Once used by British troops to gather water prior to the Battle of Bladensburg.

Garments from across the globe call this hidden gem home.

Designated as an Underground Railroad research site.

This one-room doctor's office has been moved twice, and now lives on as a museum.

The location where the famed author and abolitionist began his journey to freedom.

The site of one of the deadliest skirmishes during the Battle of Fredricksburg.

The first blast furnace in the United States that used coal and coke fuel instead of charcoal to make pig iron.

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

Over the last century, this elegant columned facade has been home to the headquarters of a bank, several nightclubs, and a restaurant.

The ruins of an 18th-century mansion that was once named "Mistake" by the man who had it built.

The last vestige of a once substantial orchard and farm in the suburbs of Northern Virginia.

The final resting place of a physician rescued during the bombardment of Fort McHenry.

The Conduit Road Schoolhouse is one of the last one-room schoolhouses remaining in Washington, D.C.

A rare example of a rural school in Washington, D.C.

The longest-covered bridge in the state of Maryland.

A glimpse into early 19th-century education.