Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

A small, forgotten prison cemetery marked only by a wrought-iron fence and eerie depressions left in the ground.

A secret rendezvous spot where John S. Mosby and his Rangers would meet to divvy up their loot after raids.

Though his role as the inventor of baseball may be up for debate, fans still festoon Doubleday's grave with baseballs.

This one-room schoolhouse was revitalized in 2007 as a museum focusing on the education of Black children during the early 20th-century.

One of the Treasury Building's original columns now sits as a garden monument in the middle of a busy military base.

The last early 20th-century schoolhouse in Fairfax County has galvanized the community and engendered a spirit of service among residents.

A weathered, American Foursquare-style house originally built for lumber merchant William Wimsatt.

This train station inspired the name of a 1970's rock band and provided the backdrop for their album cover.

A natural spring situated on the grounds of the Hawthorne estate.

This cannon dating to 1755 has stood guard at this suburban intersection since 1915.

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

The Aldie Gristmill was once the largest factory of its kind in Loudoun County.

Built to defend Washington D.C. during the Civil War, this fort became a post-war nucleus for a thriving Black community.

This monument is dedicated to those lost on June 6, 1944, in the town with that day’s highest per-capita casualty rate.

A lightship turned museum, outfitted with artifacts from the vessel's past as part of the U.S. Lighthouse Service.

This church is known as "The Home Church of George Washington and George Mason."

Metal dinosaurs lurk in a sculpture garden on the outskirts of a popular resort town.

The former home of the man whose radical ideas changed the nation.

One of the oldest train stations still standing in Virginia played a vital role during the Civil War.

The Kirkland Monument remembers a selfless Civil War hero who braved the battlefield to give water to his dying enemies.

The tomb was guarded by soldiers from both sides of the war, and some left their initials carved in the brick.

A former Confederate hospital serves as a remembrance of wounded and dead soldiers.

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