Tower Bridge as its northern landfall is in Tower Hamlets. The bridge consists of two bridge towers tied together at the upper level by two horizontal walkways, designed to withstand the horizontal tension forces exerted by the suspended sections of the bridge on the landward sides of the towers. The vertical components of the forces in the suspended sections and the vertical reactions of the two walkways are carried by the two robust towers. The bascule pivots and operating machinery are housed in the base of each tower. Before its restoration in the 2010s, the bridge's colour scheme dated from 1977, when
London Bridge Is Falling Down is an earlier version of the nursery rhyme. Some historians have raised the possibility that the attack never took place. However, the original document detailing the attack was written only about 100 years after what would be a famous event in a highly populated area, leading the majority of historians to conclude that the account is at least relatively accurate. While it might or might not be the origin of the rhyme, this would make King Olaf's victory the only historically recorded incidence of London Bridge "falling down." The theory that the song refers to the burying, perhaps alive, of