The London Bridge is the bridge that crosses the River Thames near the Tower of London, while the Tower Bridge is the bridge that has towers and is located about 1 mile upstream from London Bridge.
London Bridge has fallen down (allegedly) multiple times.
The first London Bridge was built in the late 5th century. Since then, London Bridge has been destroyed and rebuilt multiple times. The reason why it’s said that “London Bridge is falling down” is because some of its medieval structures failed on one or more occasions. There is even an old nursery rhyme about it: “London Bridge is falling down, falling down, falling down. London Bridge is falling down, my fair lady!”
London Bridge was once a toll bridge.
London Bridge was a toll bridge from the year 1209 all the way until 1750 when Westminster Bridge was built. Tolls were charged to individuals for the use of the bridge, and the money went to maintaining and repairing the bridge.
The London Bridge used to have buildings on it.
Originally, London Bridge had shops and houses built on it, which started to appear over the bridge about 1200 years ago. The houses had their backs facing the river. When the Great Fire of London occurred, the houses did not burn down. However, the Great Storm of 1703 destroyed many of the structures.
The original medieval London Bridge was demolished stone by stone.
Around the early 1960s, the medieval London Bridge was demolished. Although the bridge was considered a landmark, engineers had found it to be structurally unsound and at risk of collapse. So the bridge was dismantled one stone at a time and reconstructed over the waters of Lake Havasu, Arizona.