People visit Christmas market in Berlin, Germany

This photo taken on Nov. 22, 2022 shows a ferris wheel at the Christmas market beside the Red City Hall in Berlin, Germany. (Xinhua/Ren Pengfei)

People visit the Christmas market in front of the Berlin State Opera in Berlin, Germany, Nov. 22, 2022. (Photo by Stefan Zeitz/Xinhua)

People visit the Christmas market on Breitscheidplatz in Berlin, Germany, Nov. 22, 2022. (Photo by Stefan Zeitz/Xinhua)

A performer dances at the Christmas market in front of the Berlin State Opera in Berlin, Germany, Nov. 22, 2022. (Photo by Stefan Zeitz/Xinhua)

People visit the Christmas market on Alexanderplatz in Berlin, Germany, Nov. 22, 2022. (Xinhua/Ren Pengfei)

People visit the Christmas market beside the Red City Hall in Berlin, Germany, Nov. 22, 2022. (Xinhua/Ren Pengfei)

People visit the Christmas market on Alexanderplatz in Berlin, Germany, Nov. 22, 2022. (Xinhua/Ren Pengfei)