The most distinctive is the planting on the outer wall. It took more than a year for Qinmei Group to use experts from all walks of life, such as architecture, structure, landscape and plants. After more than 30 revisions by Guo Xuyuan Architect, numerous site surveys and ecological studies, it finally overcome the difficulties of structure, gravity, seed selection, irrigation, drainage, fortification and earthquake resistance, and succeeded in putting about 140,000 plants on the wall.