The discovery site of the "Capitalsaurus," the official dinosaur of Washington, D.C.

A much-maligned monument to teetotalism.

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

This lovely pocket park is one of the most under appreciated in D.C.

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

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

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

An overlooked tribute to one of the most important peace deals in American history.

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

The first memorial dedicated solely to the Black troops who fought for the Union.

The towering figures were created from the cemetery's fallen old-growth trees.

This grisly headstone doesn’t seem to be resting in peace.

A historic arena where the Beatles played their first concert in the U.S.

Art deco landmark on the outskirts of Washington, D.C.

A portal into the bricked up canal that runs through the heart of Washington D.C.

This church built atop a gas station promises to "equip you for the next stage in your life’s journey."

The Pentagon sits on a former island that was in Virginia at low tide and D.C. at high tide.

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

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

Before Metro, Washington had a robust streetcar network—and you see the remains of this infrastructure if you know where to look.

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.

Before Nixon, "watergate" meant canals.

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

A bas relief commemorates the "Nuns of the Battlefield" who cared for soldiers on both sides of the conflict.