"The Towers of City" by XINYU LI 
  

What does the city of the future look like? The classic residential towers will be replaced by vertical cities, and the urban ground will be covered by gardens and forests. All vertical cities are being built overhead, and connected by sky bridges with neighboring towers.
The idea of the model is to create the public spaces in these towers so that they become conforming to the human scale by creating communities. For each community, it is composed by circulation, living and activity space. The two neighboring communities are connected by a level of garden at the bottom that is accessible to the public which becomes also a link with the neighboring towers, and a level of open space at the top. The repetitive units compose a tower, and each community becomes the continuous but different.