London has got quite a summer of celebrations coming up, this week sees the Queen’s Jubilee, and it’s not long until the London 2012 Olympics. As such there are countless festivities planned across the city … and even the historic landmarks are getting in on the act. Tower Bridge has been kitted out with a new state-of-the-art lighting system to help mark the occasions. Over the past six months designers and electricians have been scaling the granite ledges and steel suspension chains of London’s landmark Tower Bridge to install some 6,500 feet (2,000m) of energy-efficient LED linear lights, 1,800 LED lamps, and 1,000 junction boxes with 16,500 feet (5,000m) of cable to the 117-year old bridge. Over the Queen’s Diamond Jubilee, the lights – which are controlled by computer – will make the famous bridge over the Thames gleam in “diamond” white. Then, when the Olympics begins, the color-changing lights will be used to highlight the Olympic Rings and Paralympic Agitos which will be fitted to the London icon.