Architectural Oddities in Washington, D.C.

The tunnel under the Capitol Building where Congress takes out its trash.

This nine-story building is the oldest standing skyscraper in D.C.

Daredevil repair workers can worm their way out the access hatch, loop ropes over the apex and rappel down the monument.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

There's an old indoor swimming pool hidden directly underneath the White House Press Briefing Room.

The walls of the iconic dome are hollow and have a secret stairway.

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

A wondrous old library overlooking the nation's capital.

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

A historic ruin just 20 feet away from a busy highway onramp.

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

There just so happens to be a court even higher than the U.S Supreme Court: a basketball court in the building itself.

This grand gothic brewery has been pumping out suds for over a hundred years.

Daily lunch spot for many of Washington, D.C.'s cab drivers.

The Corinthian columns that towered over Abraham Lincoln’s inauguration stand proud.