The fairy tale Kingdom Denmark, the capital of Copenhagen, lights up a huge Christmas tree in front of the city's central square every year (Figure 8). What kind of person is this Santa Claus? Actually firefighters, firefighters climbed the stairs of the fire truck and lit the Christmas tree with fireworks. The Danish Princess Wang may also visit the scene to watch the Christmas tree. This event means the opening of the Christmas market across the country. The Christmas season is coming. In addition to the Christmas market in Copenhagen, the 100-year-old ancient park Tivoli Tivoli Park is also open during the Christmas season. Both adults and children love to go to this ancient park, watch Christmas lights, take the ancient roller coaster and other screaming rides. Of course, come to Copenhagen, don't forget to go to Andersen's little mermaid, the winter sea breeze is very cold, pay attention to safety.