Ebook: Civilizaciones perdidas: las huellas secretas del pasado remoto

A journey through the hermetic knowledge of ancient times, from the origin of our species to the first city-state, the megalith builders, the Egyptian pyramids, the pre-Columbian astronomical observatories, or the cave sanctuaries in the Algerian Sahara to the obvious traces left by vanished civilizations. The caves of Altamira, the Valley of the Giants, Stonehenge, Machu Picchu, Piri Reis, the ruins of the Sumerian city of Ur, the Nazca lines, Angkor ... These are some of the places this work will show us, they are the most unusual archaeological sites on the planet.