Some estimates are putting the number of people who attended today's Olypic and Paralympic parade at close to a million.
A spokesman for the Mayor's Office said no exact figure was known, but it was in the hundreds of thousands and one of the largest events London has seen.
Pollyanna Hope met Oscar Pistorius just after he won gold in the T44 400 metres at the London Paralympic Games.
TeamGB and ParalympicsGB athletes are making their way through London in the 'Greatest Team Parade' to celebrate London 2012.
Olympic champions will take part in Monday's victory parade to mark their incredible achievements at London 2012.