if thats a mirage its the most complex mirage of all time.
please note here normal mirages, water, black shapes in the distance etc-
http://en.wikipedia.org/wiki/Mirage
In the video the camera moves but the mirage remains completely unchanged.
If you've ever seen a mirage in the desert when you move right to left or forward to back the mirage changes noticeably, but that thing is the same from a variety of angles.

i don't know, its pretty amazing. do those buildings exist somewhere near there in order to create some kind of mirror reflection?
or, the whole story is a complete hoax.