The Largest Soviet Rocket Ever Built... The Moon Race the USSR Tried to Erase

During the height of the Cold War, the Soviet Union secretly built the N-1 heavy-lift launch vehicle to beat the American Apollo program to the moon. After four massive launch failures caused by the untested KORD system and a lack of proper ground testing facilities, the Politburo canceled the entire space project and erased it from official history. Decades later, American aerospace engineers discovered the highly advanced NK-33 engines hidden in a secret Russian warehouse.