A concept hotel based in Austria, Switzerland, and Andorra, Iglu-Dorf offers daring travelers an Eskimo-esque experience with igloo lodgings. Using 3,000 tons of snow from the Alps and the Pyrenees, these rooms range from 99 euros a night to nearly 500 euros on New Year’s Eve. If interested, you must act quickly: the hotels, like the seasons, are here for a limited amount of time and must be rebuilt every year.