The Sydney Opera House is in which country?
Work started on the Sydney Opera House in which year of the 20th century (within five)
The Sydney Opera House was initially estimated to cost $AUS 7 million, but ended up costing this many $AUS millions (within five)
This installed instrument is the largest of its kind in the world
The highest point of the Sydney Opera House is equivalent to how many stories in a skyscraper (within three)?
The roof's structure is made of 2,194 pre-cast sections of _______
The Sydney Opera House opened in which year of the 20th century (within five)
The Sydney Opera House is only closed on two days of the year. Name either holiday.
The Sydney Opera House hosts about this many events per year (within 500, rounded to the nearest hundred)
Name the architect whose plans were chosen for the Sydney Opera House (beating out 232 other entrants)
Name the first opera performed here or the Russian composer that wrote that opera