Tower Bridge (built 1886–1894) is a combined bascule and suspension bridge in London. The bridge crosses the River Thames close to the Tower of London and has become an iconic symbol of London.Tower Bridge is one of five London bridges now owned and maintained by the Bridge House Estates, a charitable trust overseen by the City of London Corporation.he Tower Bridge Exhibition is a display housed in the bridge's twin towers, the high-level walkways and the Victorian engine rooms.