Switzerland is a small spot on planet Earth. Its history is certainly older, but only the last 300 million years or so have been sufficiently documented by the geological record to tell the story that the country shares with the entire Earth. The present guide proposes a journey through the testimonies of the Earth's history in Switzerland. It points out geological sites and landscapes, museums, mines and other witnesses, where the geological history is illustrated, from the tropical rainforest, the salt deserts, the Alpine Sea, the folding of the Alps and the erosion of the mountain ranges, to the ice ages and the recent glacier retreat! This 2nd edition includes a summary of the Earth's history in four episodes and analyses in more detail the period of the Alpine orogenesis.