Bring your parka, this ice hotel is not for the faint of heart. The temperature never drops below 23 degrees Fahrenheit and guests sport thermal underwear and hats and slip into a sleeping bag atop blocks of ice, a thick mattress, and reindeer skins. Now in its 25th year, the Ice Hotel in Jukkasjärvi, Sweden welcoes 50,000 visitors each year under a new artistic scheme. Each year, thousands of artists and creatives take part in influencing the design of the hotel. 1,000 tons of frozen water and 30,000 m3 of 'snice' (snow and ice particles mixed with air) make up this year's edition.