Photo taken on July 12, 2020 shows a street scene of Fisherman's Wharf in San Francisco, California, the United States. Most of the tourist facilities and stores in the city have been closed due to the outbreak of COVID-19. (Photos: Xinhua)

A ferry ship docks at the pier of Fisherman's Wharf in San Francisco, California, the United States, July 12, 2020. Most of the tourist facilities and stores in the city have been closed due to the outbreak of COVID-19.

Photo taken on July 12, 2020 shows a street scene of Fisherman's Wharf in San Francisco, California, the United States. Most of the tourist facilities and stores in the city have been closed due to the outbreak of COVID-19.

Tourists enjoy the waterfront of Fisherman's Wharf in San Francisco, California, the United States, July 12, 2020. Most of the tourist facilities and stores in the city have been closed due to the outbreak of COVID-19.

Tourists enjoy the waterfront of Fisherman's Wharf in San Francisco, California, the United States, July 12, 2020. Most of the tourist facilities and stores in the city have been closed due to the outbreak of COVID-19.

Photo taken on July 12, 2020 shows a street scene of Fisherman's Wharf in San Francisco, California, the United States. Most of the tourist facilities and stores in the city have been closed due to the outbreak of COVID-19.