Ibrahim ozan B: "It was built in 1905 and damaged in the WWII but restored after. In the basement there are tombs and the souvenir shop. In the first floor you can see inside of the whole cathedral there is a great pipe organ. There are concerts organised in the Dom. In the second floor you can enter into mezzanine parts. In the third floor you there is a small museum that shows the history of the Berliner Dom. If you want a good city view climb nearly 300 steps and reach to the roof of Berliner Dom"