Halloween is one of the most popular local festivals in San Francisco City. A month-long celebration that takes place in October each year is much awaited by everyone around the city. The celebration originated from ancient Celtic and Irish traditions, but it has also become an international holiday. Each region of the world celebrates Halloween in its unique way. This year, the festivities have gotten even bigger than usual with new additions like a second center stage and an outdoor stage where performances may be held if the weather is nice.