Hanford's B Reactor holds a unique place in history as the world's first full-scale nuclear reactor. Built during World War II, this groundbreaking facility was part of the Manhattan Project ...

B Reactor, which shut down in 1968, was cleaned up enough to allow some 10,000 tourists to visit each year and learn the history of Hanford. It has been designated a National Historic Landmark.

Nicknamed “Chicago Pile-1,” the world’s first nuclear reactor kicked off the Atomic Age and has a ... dismantled Chicago Pile-1 and rapidly moved to build larger reactors at Hanford, Washington and ...