The Felsennest ("Rocky Eyrie" in English) was the codename for one of several Führer Headquarters used by Adolf Hitler during the course of World War II.
It was located near Bad Münstereifel, in the western part of Germany. It was much more cramped than Hitler's other headquarters, having only four rooms. Hitler was at the Felsennest in the autumn of 1939, because there were plans to invade France and the Low Countries. He was there again on May 10, 1940 when the invasion took place.
