Featuring soaring white, shell shaped sails on top of a massive red granite platform that is said to be the largest free-standing column in the world. The Sydney Opera House was designed by Danish architect Jorn Utzon in 1957 and opened by Queen Elizabth II in 1973. As one of the most popular visitor attractions in Australia, more than eight million people visit the site annually, and approximated 350,000 visitors take a guided tour of the building each year. This 3D Puzzle is made of paper and expandable polystyrene foam board, it is easy to assemble without the use of any other tools or glue. No of Pieces: 85. Model Size: 42cm x 28cm x 14cm. Age: 8+ years.