One sees strange creatures on the tube sometimes. Halloween is celebrated in England, though amid many complaints about unwelcome American cultural imports (and children wear "fancy dress" rather than "costumes".) Monday is a much more British holiday: Guy Fawkes Day/Bonfire Night, a celebration of Guy Fawkes' failure to blow up Houses of Parliament on November 5, 1605. Community events include bonfires, burning of Guy Fawkes effigies, and fireworks. We're celebrating both!