An equine tribute in a charming Southern city that calls itself "The Horse Capital of the World."

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

These recently uncovered walls are all that's left of Washington, D.C's first defense contractor.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

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

A much-maligned monument to teetotalism.

A derelict bit of transportation infrastructure hidden in the woods.

The site of the climactic scene from the classic horror film is now a historic landmark.

Where the U.S. government kept its actual treasure, before Fort Knox.

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.

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

A wondrous old library overlooking the nation's capital.

There’s a special club house at the top for the bell ringers.

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.

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

An Industrial Revolution-era public work that purified water using nothing but sand.

The district's only illusionarium supports free writing programs for local students with every purchase.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

A benevolent, 16-foot-tall river dragon lives on a suburban lawn.

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

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

Bizarre Cavern.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.