Tourists pose for photos in front of the Macao frontier inspection building of the Hong Kong-Zhuhai-Macao Bridge, in south China's Macao, Oct. 24, 2019. Launched on Oct. 23 last year, the 55-km bridge, known as the longest bridge-and-tunnel sea crossing in the world, links China's Hong Kong Special Administrative Region (SAR), the city of Zhuhai of southern Guangdong Province and Macao SAR, making it more convenient for ordinary people to travel the three places in a single day. (Xinhua/Cheong Kam Ka)