74arminio's User Profile - Atlas Obscura
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Washington, D.C.

Theodore Roosevelt Island

The national park was once a plantation estate.
Washington, D.C.

American University Experiment Station

The school tested mustard gas for the U.S. Army during World War I.
Arlington, Virginia

Netherlands Carillon

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.
Arlington, Virginia

Joseph Marthon Memorial Mainmast

The naval commander’s proudest moment in battle is memorialized in this unique tomb at Arlington Cemetery.
Arlington, Virginia

James Parks Grave

Born a slave on the Arlington estate, Parks dug the first graves at Arlington National Cemetery, and was buried there, too.
Arlington, Virginia

Abner Doubleday Gravesite

Though his role as the inventor of baseball may be up for debate, fans still festoon Doubleday's grave with baseballs.
Arlington, Virginia

McKee Grave

In what is rumored to be an intentional act of spite, this memorial almost completely obscures the nearby grave of a senior officer.
Washington, D.C.

Watergate Gas Station

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

Watergate Fountain

The word "Watergate" will forever be associated with the infamous scandal in 1972, but this fountain is famous in its own right.
Washington, D.C.

Washington Aqueduct Castle Gatehouse

A building shaped like the Army Corps of Engineers logo, because why not?
Washington, D.C.

Zero Milestone

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

First Lot Sold At Auction Marker

This small pedestal marks the spot of the first lot of land sold in Alexandria, Virginia in 1749.
Alexandria, Virginia

Tomb of the Unknown Soldier of the American Revolution

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.
Washington, D.C.

Mary McLeod Bethune Council House

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

Volta Laboratory & Bureau

Helen Keller once broke ground on this historic center for the study of technologies to benefit the hearing impaired.
Washington, D.C.

Embassy Gulf Service Center

Behind an abandoned storefront is an example of pioneering 1930s gas station architecture.
Washington, D.C.

Mount Zion Cemetery's Underground Railroad Shelter

People escaping slavery may have hidden inside a corpse vault.
Arlington, Virginia

Dark Star Park

This unique historical monument features large concrete spheres designed to resemble fallen stars.
Arlington, Virginia

Deep Throat Parking Garage

Parking garage where Bob Woodward met Watergate source "Deep Throat."
Arlington, Virginia

Rosslyn Metro Escalator

At 207 feet, one of the world's longest continuous escalators.
Washington, D.C.

The K-9 of the Korean War Veterans Memorial

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

Woodrow Wilson Bridge

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.
Alexandria, Virginia

South Boundary Stone of Washington, DC

America's first federal monument.
Alexandria, Virginia

Alexandria Tide Lock Park

Long buried under the 20th-century landscape, this lift lock of the Alexandria Canal is the lone remnant of an ambitious early American transportation project.