Ancient Superstructures: the Secrets of Machu Picchu | Full Documentary

Erected at 2430 meters high on a rocky crest in the heart of the Peruvian Andes, the city of Machu Picchu remains in the eyes of many this civilization’s most breathtaking and enigmatic urban creation. This extraordinary sanctuary, a UNESCO World Heritage Site, still holds many mysteries. But today, using state-of-the-art technology, experts now have the means to go back in time to probe the invisible, to explore what lies beneath and around this ancient city, and reveal its secrets. The Great Wall of China: --- Welcome to the official youtube channel! 🌍 We are a documentary streaming channel covering history, science, technology, and nature. Explore worlds distant, forgotten, and unknown; from the depths of ocean trenches to the far reaches of the cosmos. New uploads of full-length documentaries and docu-series every week! Subscribe here: