This is Hoshi Ryoku hotel in Japan, it is the oldest hotel and longest running business in the world. Till today it is still functioning and welcome thousands visitors per year. One more thing, it has the most traditional hot #spa. It’s location is in Komatsu,#Japan. See more on it’s website: Hoshi Ryoku #hotel
Iglu Dorf - This igloo village is rebuilt every season from 3000 tons of snow at seven locations in the Alps and the Pyrenees… and some include a hot tub! Not quite something to pop up at home… but a fun dream tub to soak in some day!