Hitler's headquarters consist of 20 wooden cottages and barracks as well as three bunkers. It was constructed from September 1941 to April 1942 by more than 10,000 Soviet war prisoners and about 1,000 locals. Around 2,000 of the workers died and another 4,000 were killed.
The museum is supposed to be a memorial to the victims of fascism, but since you can visit concentration camps and other Holocaust museums, we wonder if this is really needed. There's only so much Hitler that tourists can take.