Visitors are seen next to holiday light installations in the Old Town in Warsaw, Poland, Dec. 3, 2025. Christmas decorations bring strong festive vibe to the city. (Photo by Jaap Arriens/Xinhua)

Visitors take a selfie in the Old Town in Warsaw, Poland, Dec. 3, 2025. Christmas decorations bring strong festive vibe to the city. (Photo by Jaap Arriens/Xinhua)

Visitors are seen next to a holiday light installation in the Old Town in Warsaw, Poland, Dec. 3, 2025. Christmas decorations bring strong festive vibe to the city. (Photo by Jaap Arriens/Xinhua)

A Christmas tree is lighted on Castle Square, in Warsaw, Poland, Dec. 3, 2025. Christmas decorations bring strong festive vibe to the city. (Photo by Jaap Arriens/Xinhua)

A Christmas tree is captured by a visitor on Castle Square, in Warsaw, Poland, Dec. 3, 2025. Christmas decorations bring strong festive vibe to the city. (Photo by Jaap Arriens/Xinhua)

Visitors are seen next to a holiday light installation in the Old Town in Warsaw, Poland, Dec. 3, 2025. Christmas decorations bring strong festive vibe to the city. (Photo by Jaap Arriens/Xinhua)