1)visitors of from all around the world
2)Opera,ballet to theatre, live musical productions , children's programs, include dancing
3)Visitors can spend hours just walking around it. Guided tours are available that take you behind-the-scenes in the world-famous Concert Hall or Opera theatre
4)Jorn Utzon designed the building.
5) He entered a contest in 1956 to design a concert hall in Sydney and was announced the winner in 1957
6)The unique design caused many difficulties and the Opera House was not completed