Hanukkah is an eight-day Jewish festival celebrated in November or December that commemorates the rededication of the Second Temple in Jerusalem. Key traditions include lighting the candles of the menorah each night, playing games with a four-sided dreidel, eating fried foods like latkes and doughnuts, giving gifts or money, and gathering with family and friends. In London, a large menorah is installed near the Christmas tree in Trafalgar Square to mark the multicultural celebration of both winter holidays.