AdvertisementManhattan Project Sites Part Of Proposed ParkDecember 04, 2012Ted RobbinsfacebookEmailA Quonset hut on the grounds of the Los Alamos National Lab in New Mexico where "Fat Man" was assembled in World War II. Fat Man was the nickname given to the atomic bomb dropped on Nagasaki, Japan, on Aug. 9, 1945. The hut would be part of a new Manhattan Project National Park. (Historical photograph courtesy of Los Alamos National Laboratory)