In this article I was astonished to find how fast China built this 30-story hotel. This hotel is 9M earthquake resistant, 5x more energy efficient, and generates 20x purer air. Attached to this article is also a video showing how fast it was built. The hotel was build around the crane, and the crane stayed in the center of the building after the project was finished. I do not know what the function of the crane is in the middle of the hotel though. Now all we need to get is the US to build this fast! Imagine how much more industrialized the US will become if it builds buildings this fast.
http://singularityhub.com/2012/01/11/china-builds-30-story-hotel-in-just...