Overview: 10,000 tons of crystal clear ice and 30,000 tons of pure snow are needed to build the Ice Hotel in Sweden every year. The hotel accommodates over 100 guests and every bedroom is unique. It has become renowned for its ingenuity and originality but it isn't the only structure created from ice. A little further into Sweden's northern wilderness is a network of roads that are created every winter on top of the Baltic Sea. Witness the construction and disappearance of two of the world's most unique Megastructures.