On Tuesday, tickets for the London 2012 Olympic Games went on sale around the world. In the UK and designated European countries, people can apply for tickets until 11:59pm on 26 April 2011. Seb Coe, Mayor Boris Johnson, Carl Lewis, Rebecca Adlington and Nadia Comăneci were all there to mark the occasion.
On Tuesday evening, the BT Tower lit up the London sky to celebrate 500 days to go to the start of the London 2012 Olympic Games.
