Shanghai Center

Yet another proposal for the third supertall skyscraper to be built pretty much in the same block as the existing two, Jin Mao Tower and the Shanghai World Financial Center.
No one knows which architect firm behind the proposal, nor the height of this tower - although it definitely looks taller than 800 meters since it completely dwarfs the 492 metre SWFC.

One of many supertall proposals for the Shanghai Center

As usual; click on the image to see it in full size.