Sydney Harbour
Sydney is famous for its harbour. This photo was taken from "Centrepoint Tower", in the city-centre. Once you leave the harbour, you are then in the Pacific Ocean.
Sydney Harbour Bridge
This is what Sydney is famous for, this bridge, also known as the "Coathanger". You can catch 'taxi ferries' which take you all over the harbour, an excellent way to see the sights and to get from one end of the harbour to the next, fairly efficiently and cheaply too. And, best of all, a great place to get a photo! :)
Opera House
Of course, the other main attraction of Sydney is the Opera House.