This space launch vehicle N1 was a Soviet response to the American Saturn-5. It was intended for cosmonauts landing on the Moon or trans lunar injection of an orbital station and even parts of an extraterrestrial vehicle for assembly on orbit. In general four
launches were made in 1969-1972, and all the four didn't succeed or simply resulted in a huge explosion. The project was cancelled when it became clear that the USSR lost the moon chase. Launch vehicle "Energia" designed later was more successful.