The Vostochny Cosmodrome (Russian: Kosmodrom Vostochny: "Eastern Spaceport") is the Siberian spaceport, located in the Amur Oblast of the Russian Far East. It was built to serve as the USSR's principal spaceport after the destruction of the Baikonur Cosmodrome on Doomsday. Construction started in 1991 and ended in 1998. The total area is 551.5 km, being a region approximately 30 km in diameter.