A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

Look closely and you’ll notice that the color changes a third of the way up the tower.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

An overlooked memorial honoring the local Washington residents who died in World War I.

Was there a small "backpack nuke" hidden in the attic? JFK apparently thought so.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

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

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

Behind an abandoned storefront is an example of pioneering 1930s gas station architecture.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

When it comes to handsignals (and colonialism) rock always beats scissors.

There just so happens to be a court even higher than the U.S Supreme Court: a basketball court in the building itself.

A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.

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

One of the largest artillery pieces in the world sits in a Washington D.C. parking lot.

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

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

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

A much-maligned monument to teetotalism.

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

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

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