The facade of the Casa Batllo, a renowned building designed by architect Antoni Gaudi, is decorated with Christmas lights in Barcelona, Spain, Dec. 10, 2025. (Photo by Joan Gosa/Xinhua)

People walk past a building decorated with Christmas lights in Barcelona, Spain, Dec. 10, 2025. (Photo by Joan Gosa/Xinhua)

People go down an alley decorated with Christmas lights in Barcelona, Spain, Dec. 10, 2025. (Photo by Joan Gosa/Xinhua)