People wearing face masks look at Christmas decorations at the Fair of Santa Llucia in Barcelona, Spain, on Dec. 1, 2020. The Fair of Santa Llucia is held in Barcelona from Nov. 27 to Dec. 23 with capacity restricted to 30% amid the COVID-19 pandemic. (Photo by Joan Gosa/Xinhua)
People look at Christmas decorations at the Fair of Santa Llucia in Barcelona, Spain, on Dec. 1, 2020. The Fair of Santa Llucia is held in Barcelona from Nov. 27 to Dec. 23 with capacity restricted to 30% amid the COVID-19 pandemic. (Photo by Joan Gosa/Xinhua)
People wearing face masks take selfies at the Fair of Santa Llucia in Barcelona, Spain, on Dec. 1, 2020. The Fair of Santa Llucia is held in Barcelona from Nov. 27 to Dec. 23 with capacity restricted to 30% amid the COVID-19 pandemic. (Photo by Joan Gosa/Xinhua)
A woman wearing a face mask looks at Christmas decorations at the Fair of Santa Llucia in Barcelona, Spain, on Dec. 1, 2020. The Fair of Santa Llucia is held in Barcelona from Nov. 27 to Dec. 23 with capacity restricted to 30% amid the COVID-19 pandemic. (Photo by Joan Gosa/Xinhua)
A woman wearing a face mask looks at Christmas decorations at the Fair of Santa Llucia in Barcelona, Spain, on Dec. 1, 2020. The Fair of Santa Llucia is held in Barcelona from Nov. 27 to Dec. 23 with capacity restricted to 30% amid the COVID-19 pandemic. (Photo by Joan Gosa/Xinhua)
People wearing face masks take photos of Christmas decorations at the Fair of Santa Llucia in Barcelona, Spain, on Dec. 1, 2020. The Fair of Santa Llucia is held in Barcelona from Nov. 27 to Dec. 23 with capacity restricted to 30% amid the COVID-19 pandemic. (Photo by Joan Gosa/Xinhua)
A woman wearing a face mask looks at Christmas decorations at the Fair of Santa Llucia in Barcelona, Spain, on Dec. 1, 2020. The Fair of Santa Llucia is held in Barcelona from Nov. 27 to Dec. 23 with capacity restricted to 30% amid the COVID-19 pandemic. (Photo by Joan Gosa/Xinhua)
Children play at the Fair of Santa Llucia in Barcelona, Spain, on Dec. 1, 2020. The Fair of Santa Llucia is held in Barcelona from Nov. 27 to Dec. 23 with capacity restricted to 30% amid the COVID-19 pandemic. (Photo by Joan Gosa/Xinhua)