Bar full of oddities, specimens, artifacts and homages to the great dime museums of the past.

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

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

Home to two notable early-20th-century Black educators, Lucy Slowe and Mary Burrill.

Now a living classroom, this house was once the home of Reverend James Clinton Dent, a formerly enslaved man and a pastor.

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

Through the decades, Black music stars have performed at this historic hub for music and the arts.

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

During Prohibition, the U.S. Congress had an "official" bootlegger, with his own Capitol Hill office.

The first presidential bomb shelter was located in an old vault under the Treasury, connected to the White House via tunnel.

The "lovely red Vega" of the legendary record-settling pilot.

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

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

A brass plaque dedicated to a convicted cannibal hangs in the National Press Club, and that's not even the craziest part of the story.

Obscure Freemasons still live in D.C.’s largest private residence.

The house where John Wilkes Booth conspired with his co-conspirators.

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

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

The famous abolitionist’s preserved estate is one of Washington's finest monuments to its great Black citizens.

Government testing at the asylum briefly explored using marijuana as a "truth serum" on Nazi prisoners of war.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

When it opened during the final years of the embargo, all the drinks and cigars were free.

A rotating cast of guys and dolls in front of a Washington, D.C. building.