Up to OJB's Photos List Opera House Again The Opera House was completed in 1973 and is one of the most easily recognised modern buildings in the world. The roof is made from pre-case concrete and the walls are mostly granite. The roof shells are sections of a 75 meter radius sphere, and the building covers 1.8 hectares and is 183 meters long and a maximum of 120 meters wide. The height is 65 meters. |