Eco luxury hotel in a quarry. Building a hotel in a quarry is such a great idea for an architect. Nobody wants to use areas that have been destroyed already by humans. However, the firm Atkins didn’t think it this way. In fact, they positively designed the proposed Songjiang Hotel that will be placed in a 100-meter-deep quarry. Another great feature with the hotel is that it will use geothermal energy to power up its electrical supply and heating system. Aside the geothermal energy, the quarry itself is also a good source of heat control and shelter from the environment. With its waterfalls and underwater aquarium, there’s no doubt that it can be the next hottest tourist destination in China.