Staatsoper Unter den Linden (Berlin State Opera) is a prominent German opera company. Its permanent home is the Opera House on the Unter den Linden boulevard in Berlin where you can enjoy Opera, Concerts, Ballet and educational programmes.

Opera: Various performances throughout the year such as: Aida, La Traviata, Salome, Tosca, Carmen, Lohengrin among others.
Check website for more details: http://www.staatsoper-berlin.org/

Ballet: Also various performances throughout the year such as: The Nutcracker, Giselle, das Flammende Herz amongst others.  More information on the Opera House's website.

Concerts: Check the web page for all kinds of classical music presentations.