It used to be a little-known mysterious forbidden zone, China's first nuclear weapons development base. The older generation of scientists and technicians successfully developed the first atomic bomb and the first hydrogen bomb in China. Atomic City was built in 1958, the first atomic bomb in our country and the first hydrogen bomb were born here, so it is called Atomic City . Atomic City also known as Qinghai 221 Factory . In 2001, the Atomic City of Qinghai was listed by the State Council as a national key cultural relic protection unit. In November 2005, Atomic City was designated as the national demonstration base for patriotic education. For this magnificent "mushroom red cloud", I do not know how many people have paid their youth, and the country has spent a great deal of money to achieve such a success, and ultimately thoroughly broke the nuclear monopoly and blackmail of Western powers.