Dresden Staatskapelle Dresden", founded in 1548. The Dresden State Theatre runs a number of smaller theatres. The Dresden State Operetta is the only independent operetta in Germany. The "Herkuleskeule" (Hercules club) is an important site in German-speaking political cabaret. There are several choirs in Dresden, the best-known of which is the Dresdner Kreuzchor (Choir of The Holy Cross). It is a boys' choir drawn from pupils of the Kreuzschule, and was founded in the 13th century. The "Dresdner Kapellknaben" are not related to the "Staatskapelle", but to the former "Hofkapelle", the Catholic cathedral, since 1980. The Dresden Philharmonic Orchestra is the
Dresden Photomasks. Their factories attract many suppliers of material and cleanroom technology enterprises to Dresden. The pharmaceutical sector developed at the end of the 19th century. The 'Sächsisches Serumwerk Dresden' (Saxon Serum Plant, Dresden), owned by GlaxoSmithKline, is a global leader in vaccine production. Another traditional pharmaceuticals producer is Arzneimittelwerke Dresden (Pharmaceutical Works, Dresden). A third traditional branch is that of mechanical and electrical engineering. Major employers are the Volkswagen Transparent Factory, EADS Elbe Flugzeugwerke (Elbe Aircraft Works), Siemens and Linde-KCA-Dresden. The tourism industry enjoys high revenue and supports many employees. There are around one hundred bigger hotels in Dresden, many