“Villa Rose,” Vaud, Switzerland
Although Switzerland didn’t participate in the Second World War, it maintained armed neutrality and was ready for an attack at any moment. They elected the military government, and built “The Toblerone line,” which is an anti-tank defense line made of concrete blocks, as well as other fortifications, including the fortress “Villa Rose.”
It looks like an ordinary house from the road, but if you look closer you’ll see that the windows in the house are drawn on. In the ’40s, this fortress always had a platoon of soldiers ready to attack, as well as artillery guns in it.