The bunkers More impressive in the world are in the most remote places. While bunkers are interested in lovers of brutalist architecture and history, they are above all important witnesses of war periods, particularly World War II and the Cold War. The 60s, with the arrival of the nuclear bomb, saw the development of large structures, some of them monumental, such as the galleries excavated during the time of Mao in China or the bunker commissioned by the Canadian Prime Minister in full tension. In addition to their often surprising appearance, these vestiges also remind us of the magnitude of world conflicts of the twentieth century. Turned today into museums or simply abandoned, the most impressive bunkers in the world do not leave anyone indifferent.