FDR's Art Deco hospital tower was hopelessly inefficient.

A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

The sculptor was instructed to add “stallion attributes” to the general's bronze mare.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

An overlooked memorial honoring the local Washington residents who died in World War I.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

Decades before the scandal, this staircase on the river was a literal "water gate."

The site of the climactic scene from the classic horror film is now a historic landmark.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

The national park was once a plantation estate.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

At 207 feet, one of the world's longest continuous escalators.

The romance of early commercial flight still fills this Art Deco destination.

The remains of a historic plantation nestled in between a parking lot and the rental car return at Reagan National Airport.

Rumor has it the hot dog stand was targeted by two Russian nuclear missiles.

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

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

This grave marks the passing of a historic Jane Doe whose identity remains a mystery to this day.

This Virginia railway overpass is said to be haunted by a serial killer in a rabbit costume.

Located at the former Lorton Prison the Lucy Burns Museum tells the story of the 91 year history of the prison including the dark chapter of its involvement in the women's suffrage movement.

Built by the patriotic residents of Boonsboro in a single day.