Ice cave

The Eisriesenwelt (german: "World of the Ice Giants) is the largest ice cave in the world located in the Austrian Alps, near Salzburg. Its length is more than 42 km. In the beginning, the locals believed that the cave is the entrance to Hell. Then in 1879, a scientist from Salzburg explored the first two hundred meters and that allowed further explorations. The cave is open from may to october and the temperature is ordinarily below freezing so warm clothes are required. Inside the cave there are many extraordinary, natural ice sculptures. All this looks unbelievable, beautiful and totally out of this world.