
Combo photo shows tourists visiting the Fisherman's Bastion in Budapest, Hungary, Sept. 27, 2018 (top) and the same place during the COVID-19 pandemic on April 2, 2020. (Photo by Attila Volgyi/Xinhua)

Combo photo shows tourists visiting the Fisherman's Bastion in Budapest, Hungary, Sept. 27, 2018 (top) and the same place during the COVID-19 pandemic on April 2, 2020. (Photo by Attila Volgyi/Xinhua)