A flea market is almost empty in Monastiraki district of Athens, Greece, on Nov. 9, 2020. Greece entered a three-week nationwide lockdown from last Saturday. (Xinhua/Marios Lolos)

A pedestrian street at the foot of Acropolis is almost empty in Athens, Greece, on Nov. 9, 2020. Greece entered a three-week nationwide lockdown from last Saturday. (Xinhua/Marios Lolos)

People take pictures of the Acropolis in Athens, Greece, on Nov. 9, 2020. Greece entered a three-week nationwide lockdown from last Saturday. (Xinhua/Marios Lolos)

People take pictures of the Acropolis in Athens, Greece, on Nov. 9, 2020. Greece entered a three-week nationwide lockdown from last Saturday. (Xinhua/Marios Lolos)