Fishing originated as survival food, with ancient Egyptian and Chinese references. Early tools included gorge, which was used to wedge fish into gullets. First metal hooks appeared with copper and bronze tools. Fishing rods were initially short, reaching up to a metre in length
First Roman bridge built around AD 50 to connect Londinium with Camulodunum. Medieval bridges existed from AD 50 to 1176, including timber structures. Old bridge (1209-1831) featured 19 piers and 140 houses, supported by starlings
World's third-longest suspension bridge opened July 1, 1940. Built with 8-foot-deep plate girders instead of traditional trusses. Construction began November 23, 1938, completed in 19 months
Steel suspension bridge linking Bankside with City of London. Construction began in 1998, opened June 2000. Cost £18.2 million, £2.2m over budget. Bridge spans 325m with 4m wide aluminum deck
Connects Ortaköy (Europe) and Beylerbeyi (Asia) across Bosphorus strait. Completed in 1973, spans 1,560m with 1,074m main span. World's fourth-longest suspension bridge at completion. Cost US$200 million ($1.37 billion in 2023)
Opened in 1937, spans Golden Gate strait connecting San Francisco to Marin County. Designed by Joseph Strauss with Leon Moisseiff, Irving Morrow and Charles Ellis. Features 4,200-foot main span and 746-foot towers, world's tallest suspension bridge until 1993. Uses 250 pairs of vertical suspender ropes and 27,572 strands of wire