The United Nations Food and Agriculture Organization's video mapping show is displayed on the Colosseum in Rome, Italy, Oct. 16, 2020. World Food Day was marked across Italy with both colorful and serious events plus tributes to the Rome-based United Nations Food and Agriculture Organization (FAO), which marked the 75th founding anniversary the same day. (Alessia Pierdomenico/FAO/Editorial use only/Handout via Xinhua)

Qu Dongyu, director-general of the United Nations Food and Agriculture Organization, attends a celebration session in Rome, Italy, Oct. 16, 2020. World Food Day was marked across Italy with both colorful and serious events plus tributes to the Rome-based United Nations Food and Agriculture Organization (FAO), which marked the 75th founding anniversary the same day. (Alessia Pierdomenico/FAO/Editorial use only/Handout via Xinhua)

The United Nations Food and Agriculture Organization's video mapping show is displayed on the Colosseum in Rome, Italy, Oct. 16, 2020. World Food Day was marked across Italy with both colorful and serious events plus tributes to the Rome-based United Nations Food and Agriculture Organization (FAO), which marked the 75th founding anniversary the same day. (Alessia Pierdomenico/FAO/Editorial use only/Handout via Xinhua)

The United Nations Food and Agriculture Organization's video mapping show is displayed on the Colosseum in Rome, Italy, Oct. 16, 2020. World Food Day was marked across Italy with both colorful and serious events plus tributes to the Rome-based United Nations Food and Agriculture Organization (FAO), which marked the 75th founding anniversary the same day. (Alessia Pierdomenico/FAO/Editorial use only/Handout via Xinhua)