~Chinese workers build 15-story hotel in just six days~ A construction crew in the south-central Chinese city of Changsha has completed a 15-story hotel in just six days. Six days. That’s how long it took to build this level 9 Earthquake-resistant, sound-proofed, thermal-insulated 15-story hotel in Changsha, complete with everything, from the cabling to three-pane windows. The foundations were already built, but it’s just impressive. Despite the frenetic pace of construction, no workers were injured — and thanks to the prefab nature of the process, the builders wasted very few construction materials.