Tourists visit Luoyi ancient city in Luoyang, central China's Henan Province, Feb. 22, 2023. Official data showed that the city saw 10.31 million trips in January of 2023, generating 6.28 billion yuan (about 902.44 million U.S. dollars) in revenue, up 746.63 percent and 690.06 percent year on year respectively. (Xinhua/Li An)