Culturall. You select a venue you are interested in, the month you are interested in, and you get a list of plays that you can choose from. The great thing about the site is that you can reserve the tickets by specifying the desirable seats on the seating map.
We got two tickets for the ballet show "Ein Sommernachtstraum" - the famous comedy by Shakespeare "A Midsummer Night's Dream" at the Parkett level. I can hardly wait!