An opera house is a theatre that is specially designed for the performance of operas. Sydney Opera House. A theater designed chiefly for the performance of operas. a theatre where operas are performed
a theatre in Covent Garden in London where the members of the Royal Opera and the Royal Ballet are based, which is often simply called Covent Garden. It is the most important opera house in the UK
Performing-arts centre on the harbour in Sydney, Australia. Its dynamic, imaginative design, by the Danish architect Jørn Utzon (b. 1918), placed first in a 1956 competition and brought Utzon international fame. Construction posed a variety of problems, many resulting from the bold design, consisting of a series of organic, glittering white shell-shaped roofs. After several years of research, Utzon gave the vaults a more spherical geometry, making them easier and more economical to build. The roofs are made up of precast concrete sections held together by cables. The centre finally opened in 1973