Tetsuo Kondo Architects teamed up with a German climate engineering firm called Transsolar to create this, an indoor atmosphere complete with clouds. They managed this feat by pumping three layers of air into the room: “cool dry air at the bottom that keeps the cloud floating, hot humid air in the middle to fashion a dense fog and hot dry air at the top.” The project’s creators also decided to include a circular ramp so visitors can walk through the clouds above them. This reminds me of Damien Hirst‘s claim that someday he would find a way to create an indoor rainbow in a gallery (I’m not sure he’s been able to pull it off yet). Either way, it’s pretty amazing how much this indoor atmosphere changes the room’s perceived size.