when was it built?
19th-century
London Bridge
 It replaced a 19th-century stone-arched bridge, which in turn superseded a 600-year-old stone-built medieval structure. 
where did the song london bridge is falling down UNANSWERABLE what are the wordings of the song? "London Bridge Is Falling Down my Fair Lady" what kind of song is it? English nursery rhyme is there a mention about it being differently melodious? UNANSWERABLE is there any play associated with this song? The rhyme is often used in a children's singing game, which exists in a wide variety of forms, with additional verses what are the different kind of games mentioned herewith? In England until the nineteenth century the song may have been accompanied by a circle dance, but arch games are known to have been common across late medieval Europe. the dance spoken about above, does it have any religious relevance? Dancing in a circle is an ancient tradition common to many cultures for marking special occasions, rituals, strengthening community and encouraging togetherness. what does the traditional expression of this dance form mean? UNANSWERABLE the original song in discussion specifies a place..what is it? London Bridge
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London Bridge [SEP] Introduction
Several bridges 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 It replaced a 19th-century stone-arched bridge, which in turn superseded a 600-year-old stone-built medieval structure. This was preceded by a succession of timber bridges, the first of which was built by the Roman founders of London. The current bridge stands at the western end of the Pool of London and is positioned upstream from previous alignments. The approaches to the medieval bridge were marked by the church of St Magnus-the-Martyr on the northern bank and by Southwark Cathedral on the southern shore.