Free Desktop Animated Wallpaper: “Novosibirsk Metro Exodus”. The City of Novosibirsk was the third largest city of Russia before the Great war. During the war, Novosibirsk was the target of an extremely potent cobalt bomb. As a result, despite most of the buildings remaining intact, the radiation is more than eight times that of Moscow. Despite the metro not being as deep as the one in Moscow, numerous people found shelter in it and survived for quite some time.