Ключевые слова: 19, 2019, architecture, armageddon, banner, california, city, cityscape, civilization, closed, concept, corona, coronavirus, covid, covid19, danger, dangerous, destruction, double, downtown, empty, epidemic, epidemiology, francisco, infectious, isolation, landmark, lockdown, locked, midtown, nobody, pandemic, prevention, quarantine, san, self, sign, skyline, store, street, symbol, tourism, town, urban, usa, view, viral, virus, zone,