|The London City Hall, informally known as the "Leaning Tower of Pizzas", "Fosters Nutsack" or a "glass testicle" (according to Mayor Ken Livingstone!), is the headquarters of the Greater London Authority and the Mayor of London. It stands on the south bank of the River Thames, in the More London development by Tower Bridge. Designed by Norman Foster, it opened in July 2002. Located next to the Tower Bridge and facing the Tower of London, the London City Hall can be considered a wonderful example of modern architecture or a scar in traditional London buildings, as the Swiss Re Tower.