Yes, you read correctly. Temple Mount, Isaac Asimov’s world cities in the Foundation trilogy, and other super-dense collections of people house in self contained bubble cities and buildings are no longer a fantasy, but now only a step away from reality. Architect Eugene Tsui is planning a 2 mile high completely self-contained building for the mega-cities of 2015.
Wired (who else?!) has a description and picture of the building, with current “worlds tallest” buildings in comparison. And that you really want to see.