http://gizmodo.com/5859081/why-is-c...gantic-structures-in-the-middle-of-the-desert I had a scroll around and found another one of the grids, there was a wind farm there. But some of the other structures, such as the "airfields" are in strange places. They appear to be built in the paths of rivers, deltas and flood plains. My theory is China is moving energy and waste management to the desert. Good idea really, take advantage of otherwise useless land. But some of the other ones I have no idea. Take a look, it's like a modern day Nazca line.