In the heart of Masuria on the North of Poland, in the deep forest, there are ruins of what used to be Adolf Hitler’s headquarters. Built in Gierloz in 1940-44, it attracts tourists with its dark atmosphere and a warning closed in the walls of the damaged buildings. Hitler named it ‘Wolf’s Lair’ as a reference to his pseudonym ‘Her Wolf’, which he used to sign articles in the 1920's. Hitler's Headquarters, like most war locations, was very well camouflaged. The town hidden in the forest consists of 200 buildings in total: shelters, barracks, 2 airports, a power plant, a railway station, air-conditioning equipment, water supply, heating plant and two teletype panels. In 1944, more than 2,000 people lived there. Hitler himself spent over 800 days in the Wolf's Lair. On July 20, 1944, Colonel Count Claus Schenk von Stauffenberg made an unsuccessful attempt on Adolf Hitler’s life. Hitler survived the explosion and brutally dealt with his opponents. Wolf’s Lair is not only the bunkers; it’s a place where crimes against humanity were planned. Here, it was decided to build new concentration camps, use prisoners in the German arms industry and take away the lives of hundreds of people from European nations. There were plans to enlarge the complex, but the works were never completed due to the rapid advance of the Red Army during the Baltic Offensive in the autumn of 1944. On January 25, 1945, the Wolf's Lair was blown up and abandoned 48 hours before the Soviet army arrived. Visiting this one-in-a-kind place is a truly remarkable experience and allows you to learn more about the history of World War II and Hitler's philosophy. The atmosphere of war is still floated in the air of the ruins, and the whole complex is a perfect example of Hitler's megalomania and his entourage.