Dresden’s Semper Opera House is the most famous opera house in Germany; it houses the Saxon State Orchestra, one of the world’s oldest and best-known orchestras. Built by Gottfried Semper between 1838 and 1841, the Semper Opera House was closed in August 1944 and was destroyed six months later by the Allied air attacks.
https://www.dresden.de/en/tourism/attractions/sights/old_town/semper-opera-house.php