在一个熙熙攘攘的地铁站台旁,推开一扇极普通的钢制大门,一条秘密通道一直通往冷战时期遗留至今的地下建筑群:一旦遭到核武器袭击时可用来保护数千人的混凝土地堡。在柏林墙倒塌多年后的今天,第三次世界大战在德国首都 A brisk steel gate opens onto a bustling subway platform, a secret passage leading to the underground buildings left over from the Cold War era to the concrete bunkers that can be used to protect thousands of people in the event of a nuclear attack. Today, many years after the fall of the Berlin Wall, the Third World War took place in the German capital