Standing for over 200 years, the abandoned home of a Revolutionary War hero and later a succession of prison superintendents.

The last of nine massive kilns that produced many of the red bricks for buildings in Washington, D.C. and northern Virginia in the early 20th century.

The first national memorial to honor all women suffragists stands on land where suffragists were once imprisoned.

This museum sits on the site of a decommissioned military communications base.

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 field of concrete was once an active defense site armed with nuclear warheads.

This little brick tunnel built by Confederate forces was used to conduct surprise attacks on the railroad.

This restored house built from a Sears kit in the 1930s is a physical remnant of FDR's New Deal following the Great Depression.

A 14-foot monument marks the resting place of two of the town's earliest residents—and one unknown soldier.

This massive swimming pool is the high tech home to the human-powered submarine races.

An eccentric company offers eccentric millionaires the opportunity to have spaceflight-related experiences.

The sole surviving building from Newgate village, a colonial settlement that was renamed Centreville in 1792 after it was granted town status by the Virginia Assembly.

The shelves in the back of this thrift store are devoted to saving, not selling, retro tech.

The U.S. government built the million-pound stack of steel during the Space Race.

Three abandoned missile silos are hiding in plain sight behind a suburban development in Maryland.

This taxidermy horse was a Civil War hero.

A surprising, but overlooked example of geology in the middle of the nation’s capital.

A diminutive memorial marks the site of a successful assassination by a right-wing death squad in America's capital.

Amid the sprawling Defense Intelligence Agency Headquarters is one of Washington's least accessible museums.

Art deco landmark on the outskirts of Washington, D.C.

A historic arena where the Beatles played their first concert in the U.S.

A small triangle of DC grass is the final resting place of one of Sonny and Cher's songs.

One of the largest artillery pieces in the world sits in a Washington D.C. parking lot.

The privately owned cemetery that holds room for Washington's finest when they step down from life.