A staff member helps a young visitor with pottery at a cultural event on 873rd Moscow City Day

MOSCOW, Sept. 6, 2020 (Xinhua) -- A staff member wearing a face mask and traditional costumes makes pottery with a young visitor during a Moscow City Day cultural event at Kolomenskoye park in Moscow, Russia, Sept. 5, 2020. Celebrations for the 873rd anniversary of Moscow were downsized to a number of cultural events held at different venues around the city to prevent the spread of COVID-19.