The Semperoper is the opera house of the Sächsische Staatsoper Dresden and the concert hall of the Staatskapelle Dresden . It is also home to the Semperoper Ballett. The building is located near the Elbe River in the historic centre of Dresden, Germany. The opera house was originally built by the architect Gottfried Semper in 1841. After a devastating fire in 1869, the opera house was rebuilt, partly again by Semper, and completed in 1878. The opera house has a long history of premieres, including major works by Richard Wagner and Richard Strauss.

More details: https://en.wikipedia.org/wiki/Semperoper