SubjectsFascinating FactsFactsIP FactoidsPlace-Facts The Sydney Harbour Bridge is the world’s tallest steel arch bridge. By IP Factly - Jun 3, 2015 0 3 Share on Facebook Tweet on Twitter Sydney Harbour Bridge by joakant. PD Image Opened in 1932, the top of the bridge is 439 feet above the harbor. It is also the fifth longest bridge in the world.
