Each year, the Icehotel in Jukkasjärvi in northern Sweden is constructed anew, using snow and ice from the nearby Torne River. Builders and artisans create everything, from the rooms’ decorative flourishes to the beds, chairs and bar, complete with glasses made of ice. There’s a chapel, hall, reception area and 100 guest rooms, each one a unique work of art. Guests sleep in thermal sleeping bags atop ice beds that are covered in reindeer furs. There’s no heating, of course, and the temperature is about -5 degrees Celsius. Bathrooms are located in a warm building near the Icehotel and there’s a sauna and outdoor hot tub for defrosting. Come spring, the hotel melts and returns to the Torne River.