Piccadilly Circus in central London changed into a genuine street circus earlier.
Trapeze artists, aerial acrobats, hula hoopers and jugglers arrived on the capital's landmark to mark the Olympic and Paralympic Games.
Passers-by enjoyed free shows, including Chinese pole artists, clowns and BMX street dance on what are generally some of London's busiest streets.
The Piccadilly Circus Circus, part of the London 2012 Festival, was kept under wraps until the showcase had started, with performers zip-wiring from buildings and actors walking down Regent Street.
– London Mayor Boris Johnson
Piccadilly Circus Circus is a truly one-off spectacle, a thrilling highlight of the many free events we are hosting to celebrate the Games.
Not many people know that 18th century London was home to modern circus and the first shopping arcades in Britain.
So where better to stage this extraordinary event than the West End, the most exciting entertainment and shopping capital in the work today?