Mysterious installations bring levity and light to a sometimes stodgy city.

After his presidency, George Washington planned to live only a few blocks from the Capitol building.

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

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

Railroad officials in the early 1900s sought to spare travelers the sight of Roman soldiers’ private parts.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

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

People escaping slavery may have hidden inside a corpse vault.

A public art jibe at one of the United States’ oldest and longest-serving senators.

The oldest house in Washington, D.C. wasn't originally constructed in the nation's capital.

A tribute to the pop culture icon overlooks this Washington D.C. intersection.

There's a crumbling old mansion inside the Smithsonian National Zoo.

You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.

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

An amazing example of early-20th-century architecture, this church features marble transported from Utah.

The last remaining building in Washington, D.C., built by H.H. Richardson, one of America's most iconic architects.

This poor little statue is the most vandalized memorial in Washington.

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

A small token of gratitude from freezing cold journalists who were given a warm haven while covering JFK's inauguration.

This stately mansion, built in 1787 by America's first Secretary of the Navy, is rumored to be one of the most haunted buildings in Washington, DC.

This historic boathouse was constructed using salvaged lumber from burned barns.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

‘Bush the old fire dog died of poison July 5th, 1869. RIP.’

The early data processor factory founded in Washington for the 1890 U.S. Census went on to become IBM.