Ключевые слова: architecture, building, city, cityscape, confinement, corona virus, covid, covid19, danger, disease, empty, epidemic, europe, european, flu, hazard, health, health care, healthcare, influenza, isolation, landmark, lockdown, madrid, madrid city center, outbreak, outdoor, outdoors, pandemic, people, pneumonia, prevention, protection, protective, public, quarantine, respiratory, sarscov2, shutdown, spain, spanish, store, street, survival, tourism, travel, urban, virus, worry,