Bus 3100, one of the first air-conditioned buses to debut in the United States when it was tested in 1956, is seen during the 25th Annual Bus Festival in New York, the United States, on Oct. 7, 2018. The New York Transit Museum held its 25th annual bus festival on Sunday. The buses on display represent about 80 years of surface transit history in New York City. The oldest bus at the festival, Bus 1263, is a double-decker bus that was purchased by the Fifth Avenue Bus Company in 1930. (Xinhua/Li Muzi)