"Arguably one of Vienna's most beautiful landmarks, the Opera is a cultural treasure. Not only has it hosted many outstanding works since its origin as the Wiener Hofoper in 1863, it's associated with one of the world's greatest philharmonics. The detailed interior, including marble staircase, serves as an elegant reminder of Vienna's imperial history. Cheap (usually a few Euro), standing-room-only tickets are sold before each performance, which often brings out some of the most vocal audience members, for better or worse, depending on the performance."