The Novosibirsk Opera and Ballet Theatre (the official title is the Novosibirsk State Academic Opera and Ballet Theatre(Russian: Новосибирский государственный академический театр оперы и балета) is one of the most important theatres in Novosibirsk and Siberia. It is located at the center of Novosibirsk at Lenin square. The building was completed in February 1944, and the first performance was held on 12 May 1945. As of 2012, it is the largest theatre in Russia, larger than the Bolshoi Theatre (literally "Big theatre") in Moscow. After its renovation in 2005 with computerized stage equipment, at the time it became the most technically advanced in Russia.