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

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

This leafy estate is worth $18 million and is so grand it has two mailing addresses.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

The country's oldest continually-operated mini golf course lies hidden in plain sight, eclipsed by one of D.C.'s most popular tourist attractions.

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

A wondrous old library overlooking the nation's capital.

A historic neighborhood church is reborn as a psychedelic arts collective.

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

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Home to items never before seen by the public.

The United States Capitol's former columns still stand.

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

This beautiful vintage movie palace has seen little change in form or function since the 1920s.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

A genuine Tudor manor transported piece by piece from England.

Headquarters of the legendary clairvoyant's readings, spiritual hospital, and massage school.

Volcanic stone sentinels stand watch at a Korean Bell Garden in Virginia.

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.