?

Children view the "Vertical City" model at Shanghai Tower, China's tallest building, in Shanghai, east China, on Feb. 27, 2019. The model, consisting of botanical elements made from sustainably sourced sugarcane, was created on the 126th floor of the Shanghai Tower by 11 LEGO Certified Professionals from around the world, along with 30 children. The model is 2.47 meters tall and covers an area of more than 5 square meters. The Vertical City theme examines the use of vertical space for more sustainable living, according to the organizer. The Vertical City model will be open to visitors for the next six months at the Shanghai Tower, with the aim of promoting public discussion on sustainable living. (Xinhua/Ren Long)