 In October 2005, performances included a string quartet playing at the top of the Town Hall clocktower, a tour round a pitch black church with only a torch and a sinister audio-guide that could not be trusted, and a treasure hunt from the Institute for Crazy Dancing.The hunt involved 200 audience members being led across the city and becoming a show in their own right, collecting white boiler suits and umbrellas en route, and dancing up and down Briggate, the main shopping street, with three shire horses, an ice cream van and the bagpipes of Leeds Pipe Band.Nuit Blanche is a growing global trend which since 2005 Leeds has been leading in the United Kingdom.