This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

The Cold War-era "underground Pentagon" is a sprawling subterranean hideaway for the Defense Department.

Rumors persist that a bottle of whiskey is sealed within this Demijohn-shaped adornment.

An outlandish shoe shaped house built by an eccentric millionaire.

Don't get it twisted: This is the oldest pretzel bakery in the United States.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

The ruins of this long-abandoned unsuccessful gold mine can still be found.

This pun was simply waiting to come to life, and one defense contractor made it so.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

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

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

The innocent intentions of this monument are somewhat lost in the sculpture's muscled imagery.

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

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

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

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

The final residence of an educator, civil rights leader, and presidential advisor was also the first headquarters of the National Council of Negro Women.

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

The rooster who crossed the road lives on forever in Takoma Park, Maryland.

A tribute to the beloved, kind-hearted "homeless mayor" of Silver Spring.

Built in 1945, this historic train station has a new lease on life with its baggage area serving as an event space.

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.