The Annual Mayor of London Diwali Festival will be taking place on Sunday 3 November in Trafalgar Square! Look out for more information to come. Notting Hill Carnival 2019 Europe's biggest street festival, organised by Notting Hill Carnival Limited. We Are All Londoners Join us as we share stories, language, food, sport and culture to celebrate and support the European communities living. Reimagine. Your city. Car free. A fun outdoor event offering Londoners the opportunity to reimagine and explore their city car free. London New Year’s Eve Fireworks 2019 Sign up for updates about tickets for the Mayor of London’s New Year’s Eve fireworks.