This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

This simple stone memorial remembers a secret, Geneva Convention-defying interrogation base from WWII.

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.

This brick-lined pedestrian walkway was once a railway tunnel used during the Civil War.

Taste the white whiskey that the United States' first president once distilled and enjoyed.

A former major munitions plant that has been converted into a sprawling art space.

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

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

The only place for a truly presidential dram.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

The narrowest house in America is seven feet of pure spite.

Once forgotten and built over, this historic Black cemetery now houses a poignant memorial.