Young people with zombie makeups attend a rally to celebrate Halloween in the downtown area of Bishkek, Kyrgyzstan, on Oct. 31, 2014. (Xinhua/Roman)

Students prepare to attend a Halloween parade at Glebe Elementary School in Arlington, Virginia, the United States, Oct. 31, 2014. (Xinhua/Yin Bogu)

Students attend a Halloween parade at Glebe Elementary School in Arlington, Virginia, the United States, Oct. 31, 2014. (Xinhua/Yin Bogu)

Students attend a Halloween parade at Glebe Elementary School in Arlington, Virginia, the United States, Oct. 31, 2014. (Xinhua/Yin Bogu)

Students prepare to attend a Halloween parade at Glebe Elementary School in Arlington, Virginia, the United States, Oct. 31, 2014. (Xinhua/Yin Bogu)

Children dressed in Halloween costume take part in Halloween Parade in New York, the United States, on Oct. 31, 2014. The annual Children's Halloween Parade is held here to celebrate Halloween on Friday. (Xinhua/Wang Lei)

Children dressed in Halloween costume take part in Halloween Parade in New York, the United States, on Oct. 31, 2014. The annual Children's Halloween Parade is held here to celebrate Halloween on Friday. (Xinhua/Wang Lei)

Children dressed in Halloween costume take part in Halloween Parade in New York, the United States, on Oct. 31, 2014. The annual Children's Halloween Parade is held here to celebrate Halloween on Friday. (Xinhua/Wang Lei)

Children dressed in Halloween costume take part in Halloween Parade in New York, the United States, on Oct. 31, 2014. The annual Children's Halloween Parade is held here to celebrate Halloween on Friday. (Xinhua/Wang Lei)

Children dressed in Halloween costume take part in Halloween Parade in New York, the United States, on Oct. 31, 2014. The annual Children's Halloween Parade is held here to celebrate Halloween on Friday. (Xinhua/Wang Lei)

Children dressed in Halloween costume take part in Halloween Parade in New York, the United States, on Oct. 31, 2014. The annual Children's Halloween Parade is held here to celebrate Halloween on Friday. (Xinhua/Wang Lei)

Children dressed in Halloween costume take part in Halloween Parade in New York, the United States, on Oct. 31, 2014. The annual Children's Halloween Parade is held here to celebrate Halloween on Friday. (Xinhua/Wang Lei)

Children dressed in Halloween costume take part in Halloween Parade in New York, the United States, on Oct. 31, 2014. The annual Children's Halloween Parade is held here to celebrate Halloween on Friday. (Xinhua/Wang Lei)