4K Barcelona main avenue empty during coronavirus outbreak and state of alarm in Spain, April 2020

Keywords: 2020 avenue balconies barcelona buildings catalonia central street city city avenue concrete concrete jungle coronavirus covid-19 covid19 delta deserted road emergency empty empty road epidemic europe facade health health emergency house infection isolation lockdown lonely main avenue medical no cars no people no tourists no traffic omicron pandemic quarantine road road lines sars-cov-2 spain state of alarm street symptoms traffic traffic lights vaccination vaccine virus