Coins and medals straight from the mint await visitors to this shop in the nation's capital.

For over 70 years, this house was home to a pioneering Black artist and educator.

The final residence of an educator, civil rights leader, and presidential advisor was also the first headquarters of the National Council of Negro Women.

Need a hardcopy of the 50-title Code of Federal Regulations? This is the place.

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

The wooded estate of the Forest Service employee responsible for D.C.’s cherry blossom trees.

This rowhouse doubles as one of the most photographed spots in the nation's capital.

Press 1 for knock-knock jokes.

A Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.

Stone markers on the campus of Gallaudet University commemorate a peculiar school tradition.

This historic building is now home to the Public Access Corporation for the District of Columbia.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

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

Cold War intelligence agents monitored communist embassies from an attic in a former pigeon coop.

The 28,000-year-old specimen is remarkably intact.

An unusual sculpture, an interesting history, in a strange place, for a good cause.

A secret greenspace hides atop a Capitol parking garage.

A replica of the famous memorial statue at the Normandy American Cemetery hides in an office building in downtown D.C.

One of the most influential presidents in U.S. history wanted only this plain, elegant monument as his lasting memorial.

The institution is sitting on a goldmine of 21,000 paints, varnishes, pigments, and primers preserved for posterity.

More than 500 unique and specially designed cases collected by D.C.'s "Harmonica Case Man."

A diminutive plaque recalls the treetop sniper who almost killed Abe Lincoln.

This unassuming passageway played a key role in one of the most important events in U.S. history.

An ear-piercing buzzer calls lawmakers to a vote with a series of long and short rings to form coded messages.