Discover the worlds greatest spans and the people who created them. What enables a simple arch bridge to support such great weight? What holds up a suspension bridge? Bridge the world with David Macaulay and meet the brilliant designers who dared to extend roads and railways with ingenious but sometimes flawed designs. From the Golden Gate Bridge to some of the worlds groundbreaking spans, youll explore dozens of monumental engineering feats through historic film footage, fascinating photographs, illustrations and dramatic recreations.