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

A piece of the Ludendorff Bridge, also known as Remagan Bridge, calls this military base home.

The well-preserved remnants of a bridge that once made up a WW1-era military railroad.

This small pedestal marks the spot of the first lot of land sold in Alexandria, Virginia in 1749.

A superbly preserved example of Georgian residential architecture that was once home to one of the founders of Alexandria, Virginia.

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

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

Hidden in the forest atop a long, winding driveway is this stately home.

Once the largest trading firm of enslaved people in the U.S., this building is now a museum that preserves Alexandria's dark past.

Long buried under the 20th-century landscape, this lift lock of the Alexandria Canal is the lone remnant of an ambitious early American transportation project.

A massive, majestic mammal watches over pedestrians from his perch atop a former B.P.O.E. lodge.

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

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

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

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

Every drop of D.C. tap water flows through this old waterworks.

The monument's pointy aluminum tip has been melted down by repeated lightning strikes.

A much-maligned monument to teetotalism.

A fantastic array of trays and cables once whisked books over to the Capitol at 600 feet per minute.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

An imposing pair of sphinxes stand guard outside this Egyptian Revival tomb.

A bronze statue of Mister Rogers in the neighborhood where he grew up.

This quarter-mile tunnel under the Bluff in Pittsburgh bends at a 45-degree angle.

An ode to filmmaker George A. Romero, who used the mall to film an iconic horror movie.