Ключевые слова: balkan, belgrade, christmas, corona, coronavirus, coronavirus in serbia, coronavirus protection, covid, covid 19, crisis, crowd, crowded, decoration, epidemic, face, face mask, facemask, fortress, health, illness, kalemegdan, kneza mihaila, kneza mihailova, mask, new year, new years eve, pandemic, park, people, protection, protective equipment, respiratory, restriction, safety, sars cov 2, serbia, serbian, social distancing, street, traveling, virus, winter, woman, xmas,