Suzhou Center, located on the west of Jinji Lake, Suzhou Industrial Park, is planned to be put into use in 2017. The above picture taken on the afternoon of March 20 shows that the 36,000-square-meter "wings of tomorrow", a thin-shell-structured roof above the center's annex building, is taking shape. This thin-shell structure boasts the largest integral-type free-form surface in the world, and the world's largest daylight roof that seamlessly connects several buildings. The mottled roof, similar in appearance to a flying phoenix, looks very spectacular.