Some estimates have put the number of revellers supporting TeamGB and ParalympicsGB at the athletes parade today at close to a million.
A London Mayor's Office spokesman said the exact figure was unknown, but that it was in the hundreds of thousands.
Today also marked one of the largest events London has seen, the spokesman added.
London Mayor Boris Johnson may have increased his popularity at the end of the Olympic Games.
It never crossed my mind that Singapore 2005 would be up there with Blair's repeal of Clause 4 in Blackpool or the fall of the Berlin Wall
Following the end of the London Paralympics 2012, the Olympic Park in Stratford is set for yet another transformation.