Tourists visit the Senado Square in south China's Macao, on May 3, 2021, the third day of China's five-day May Day holiday. (Xinhua/Cheong Kam Ka)
Tourists visit the Ruins of St. Paul's in south China's Macao, on May 3, 2021, the third day of China's five-day May Day holiday. (Xinhua/Cheong Kam Ka)
Tourists visit the Senado Square in south China's Macao, on May 3, 2021, the third day of China's five-day May Day holiday. (Xinhua/Cheong Kam Ka)
A tourist displays her Macao health code to a janitor before entering the Ruins of St. Paul's in south China's Macao, on May 3, 2021, the third day of China's five-day May Day holiday. (Xinhua/Cheong Kam Ka)