Manhattan Project

The Manhattan Project Comes to Washington, D.C.

War Department Building, 21st and Virginia Ave., N. W., Washington, D. C. (Source: Boston Public Library, Tichnor Brothers Postcard Collection)

When people think of the Manhattan Project, the top secret American mission to build the first atomic bomb, they often think of Los Alamos, New Mexico, where the world’s first atomic device was actually assembled and detonated. But in reality, the project was assigned to 26 locations across the country, from research labs in Chicago and New York to uranium mines in Colorado to production and design facilities in Tennessee and New Mexico.

And it was all run from a small two-room office in Washington, D.C.