Tower Bridge bridge's upper walkways. The pedestrian walkways are above the river at high tide. The main bridge deck carries two lanes of road traffic between two low-level pedestrian walkways across both suspension spans and the opening bascule section of the bridge, with the walkways separated from the roadway by fences. The roadway passes through each of the two towers, whereas the low-level walkways pass around the outside of the towers. One of the chimneys on the bridge, which are often mistaken for lamp posts, connects up to an old fireplace in a guardroom of the Tower of London. It is long-disused.
London Bridge Is Falling Down then adapted to fit the most famous bridge in England. One of the earliest references to the rhyme in English is in the comedy "The London Chaunticleres", printed in 1657, but probably written about 1636, in which the dairy woman Curds states that she had "danced the building of London-Bridge" at the Whitsun Ales in her youth, although no words or actions are mentioned. Widespread familiarity with the rhyme is suggested by its use by Henry Carey in his satire "Namby Pamby" (1725), as: <poem>"Namby Pamby" is no Clown, London Bridge is broken down: Now he courts the gay Ladee