A caravan decorated for Halloween is seen during Anaheim Halloween Parade in Anaheim, the United States, Oct. 26, 2019. (Photo: Xinhua)

People in costume participate in Anaheim Halloween Parade in Anaheim, the United States, Oct. 26, 2019. (Photo: Xinhua)

People participate in Anaheim Halloween Parade in Anaheim, the United States, Oct. 26, 2019. (Photo: Xinhua)

People in costume participate in Anaheim Halloween Parade in Anaheim, the United States, Oct. 26, 2019. (Photo: Xinhua)

People in costume participate in Anaheim Halloween Parade in Anaheim, the United States, Oct. 26, 2019. (Photo: Xinhua)

A woman in costume participates in Anaheim Halloween Parade in Anaheim, the United States, Oct. 26, 2019. (Photo: Xinhua)

People in costume participate in Anaheim Halloween Parade in Anaheim, the United States, Oct. 26, 2019 (Photo: Xinhua)