The journey we will take this evening will allow us to discover one of the most fascinating and distant lands: Patagonia. But it will be just one of the stages of a scientific, anthropological, prehistoric journey, which will take us across half the South American continent from the Tropic of Capricorn up to the famous Tierra del Fuego, literally the end of the world. We will take you to an extraordinary place but to find it you have to leave the main road and enter Patagonia for more than 100 km. Here you discover a small wonder: it is an ancient Canyon, dug by the sinuous course of a river. You really have the feeling of entering another era, a prehistoric scenario. Indeed, this long canyon was inhabited by ancient civilizations that disappeared thousands of years ago. And they had sacred places, a group of caves and on their walls these populations left an incredible trace of their presence: hundreds of colorful handprints. It is a true Sistine chapel from prehistory.