The Sydney Tower is 304.8 & 160 meters high. It is the tallest building in Australia and the highest visiting platform in the southern hemisphere. The Sydney Tower, the Sydney Opera House and the Sydney Harbour Bridge are also known as the three landmarks of Sydney. This landmark building we will all go to see, for us is not really high, not many people climb the tower, soon up. From a distance, you can see a corner of the Sydney Opera House and the Harbour Bridge. Below is St. Mary's Cathedral. It's beautiful to see all of them from top to bottom. It's New Year's Day. Writing New Year's wishes on the tower and pasting them on the glass is of special significance.