I am from Lewes and we have the biggest bonfire night celebrations in the country. The bonfires are at least as tall as a house!
there are massive torchlit parades with burning crosses, they blow up images of policemen and politicians, people dress as the pope and preach to the crowd and then have fireworks and bangers shot at them! Pretty crazy really.
http://en.wikipedia.org/wiki/Lewes_Bonfire