The Floating city Technology for the future

In the animation movie such as avatar we see the city which float in the air.

 We think that it is impossible happen, but  maybe it can be possible in the future. 

Why ?? because the technology is  advance and now an architect from china is  making a plan which make a city in the air. It can cause the population in the earth is too much, so the government try to build the island in theair.   

That city like an UFO plane and in the inside has a river, mountain, and jungle.  At the glance this city like only a imagination but no one know what happen in the future