Guy Fawkes Night, also known as Bonfire Night, is celebrated in the UK to mark the foiling of the Gunpowder Plot in 1605, when Guy Fawkes and others attempted to blow up the Houses of Parliament. People light bonfires, set off fireworks, and sometimes burn effigies of Guy Fawkes as a symbol of the plot's failure. It's a tradition that turns history into a vibrant annual celebration.