Beijing Shougang Ski Jumping Platform, Olympic Tower, China Century Monument, Wuhan Second Yangtze River Bridge, Wuhan Century Center, the Ferris Wheel of Changsha Window of the World, Harbin Concert Hall... On the evening of the 20th, blue lights representing children's friendship were lit on landmark buildings in more than 30 cities across the country to celebrate World Children's Day. November 20 is the World Children's Day determined by the United Nations every year. The theme of this year's World Children's Day celebration is "gather every ray of light to light up the future of children". Various celebrations were held in various places to advocate "working together to create an inclusive, sustainable and child friendly social environment". As the final place for the lighting ceremony of the World Children's Day, on the evening of the 20th, blue lights were lit on the ski jump track of Beijing Shougang, and the words "World Children's Day" and color patterns appeared on the big screen. Five children from different countries wish children around the world a happy holiday in their own languages. On November 20, the ski jumping platform of Beijing Shougang was lit for World Children's Day. On the same day of Xinhua News Agency, Beijing also held a publicity campaign for the construction of a child friendly city, "Friendly Beijing, Building a Better Future for Children". The Office of the Beijing Municipal Commission for Women and Children, the Beijing Municipal Commission of Planning and Natural Resources, the Beijing Municipal Development and Reform Commission and other departments jointly issued an action initiative to build a child friendly city, and released the logo and promotional video of the Beijing Children Friendly City. On the evening of the 20th, some buildings along the southern coast of Qingdao, Shandong Province, lit up "Children's Blue", "World Children's Day", "A Happy and Beautiful Home in a Children Friendly City", "Children's Friendship Makes Qingdao a Better Tomorrow" and other child friendly slogans, playing in a rolling manner, creating a warm and strong festival atmosphere. "The moment I saw the blue lights of Qingdao's landmark buildings lit up, I was excited. I hope my peers can grow up happily and that every corner of the world is full of harmony and joy." Liu Mingze, a sixth grader at Qingdao Hisense School, said. On the same day, Liu Mingze and Cheng Yuxuan, a sixth grader of Yucai School in Laoshan District, gathered with children from all over the world to celebrate the festival on the Xiaohaihua Football Field of Qingdao Women and Children's Activity Center through live connection. On November 20, some buildings in Shinan District, Qingdao, Shandong Province were lighted for World Children's Day (UAV photo). In addition to the way that Xinhua News Agency reporter Li Ziheng lit the landmark, all regions are committed to gathering strength to "light up the future of children" and create a more inclusive, sustainable and child friendly social environment. Beijing makes every effort to promote the construction of a child friendly city. In September this year, the Regulations on the Protection of Minors in Beijing (Draft for Comments on the Revised Draft) proposed that Beijing would encourage, support and guide people's organizations, enterprises and institutions, social organizations and other organizations and individuals to carry out social activities and services conducive to the healthy growth of minors. We will promote the construction of a child friendly city, improve the policy system for children, optimize public services for children, strengthen the protection of children's rights, expand the space for children's growth, improve the environment for children's development, and comprehensively guarantee children's rights to survival, development, protection and participation. Qingdao General