Each May the city hosts the Brighton Festival and Brighton Fringe, the second largest arts festival in the UK (after Edinburgh). This includes processions such as the Children's Parade, outdoor spectaculars often involving pyrotechnics, and theatre, music and visual arts in venues throughout the city, some brought into this use exclusively for the festival. The earliest feature of the festival, the Artists' Open Houses, are homes of artists and craftspeople opened to the public as galleries, and usually selling the work of the occupants. Since 2002, these have been organised independently of the official Festival and Fringe.