3Sydney Harbour Bridge, Sydney, Australia

Known locally as “The Coathanger” due to its arch-based design, the Sydney Harbour Bridge is a landmark that defines the Sydney skyline. Completed in 1932, this steel arch bridge spans Sydney Harbour, connecting the central business district with the North Shore. Its impressive span of 503 meters (1,650 feet) and its distinctive design make it one of the most recognizable bridges in the world.