Sydney Harbour Bridge is one of Australia’s most well known and photographed landmarks. It is the world’s largest (but not the longest) steel arch bridge with the top of the bridge standing 134 meters (440 feet) above Sydney Harbour.

It took eight years to build and opened in March 1932. Because the steel expands or contracts depending on whether it is hot or cold the bridge is not completely stationary and can rise or fall up to 18 cm (7.1 inch).