en Cuevana 3. Witness the Zurich Opera's stunning production of Richard Wagner's masterpiece "Tannhauser," conducted by Franz Welser-Most and featuring Peter Sieffert (Tannhauser), Solveig Kringelborn (Elisabeth) and Roman Trekel (von Eschenbach). Initially produced in Dresden in 1845, "Tannhauser" instilled a sense of wonder in a few of Strauss's ardent friends and admirers, among them Robert Schumann and Franz Liszt. Opera buffs will love it.