Washington's iconic carousel has a nice piece of Civil Rights history.

A much-maligned monument to teetotalism.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

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

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

A fantastic array of trays and cables once whisked books over to the Capitol at 600 feet per minute.

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

Home to a vast and influential collection of Shakespeareana.

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

The monument's pointy aluminum tip has been melted down by repeated lightning strikes.

A clone of a cloned tree that was so important it allegedly had its own guards.

The span is crooked and made from two older recycled bridges.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

Go take a picture with the inventor of the daguerreotype photographic process.

In the basement of the U.S. Capitol Building is a hidden storage room full of ornate floor tiles leftover from the 1850s.

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

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

A historic ruin just 20 feet away from a busy highway onramp.

This poor little statue is the most vandalized memorial in Washington.

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

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

The hidden offices underneath Memorial Bridge have been locked up since 1976.

An overlooked oasis of quiet on the grounds of Washington's monumental basilica.