London Bridge

Since Roman times, several crossings named London Bridge have spanned the River Thames between the City of London and Southwark in central London. The current crossing, which opened to traffic in 1973, is a box girder bridge built from concrete and steel. It replaced a 19th-century stone-arched bridge, which in turn superseded a 600-year-old stone-built medieval structure. Wikipedia, CC BY-SA 4.0