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

The resting place of a Civil War celebrity's amputated limb.

An alternate history park where the Union Army loses the war... to dinosaurs.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

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.

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

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

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

Parking garage where Bob Woodward met Watergate source "Deep Throat."

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

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

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

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

It was once the base for a series of domestic terror attacks.

America's Most Wanted's set resides in this tribute to the history of crime and punishment.

A secret greenspace hides atop a Capitol parking garage.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

This statue of one of baseball’s greatest pitchers looks like something out of a sci-fi horror movie.

The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

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

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

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.