According to the Guinness World Records, the largest Halloween gathering was achieved by 5086 participants in the city of London, UK, on October 31, 2010. This record-breaking attempt was organized by the London Borough of Lewisham and featured a parade, live music, and various spooky activities. The previous record was held by the city of New York, which had gathered 3,939 people in costume in 2007. The achievement of the Londoners was celebrated with fireworks and the distribution of Halloween treats to the participants.