Built into the side of a former rock quarry, the Shimao Wonderland Hotel takes full advantage of its unique location. Situated a short drive from Shanghai and scheduled for completion in the near future, the hotel will feature 380 rooms spread across 19 stories
Source: Shimao Wonderland Hotel
The rooms next to the waterfall would be so relaxing, but how safe would this be from floods etc. I guess a dam is a wasted space, this is a unique way to use it.