Listen to the Summary of Mark Adams's Turn Right at Machu Picchu in 20 minutes. Please note: This is a summary & not the original book. Cusco is a city in Peru that was the center of the Inca empire. It was sacred to the Incas, who considered it the navel of their world. The Sapa Inca was the ruler of it all, and his power derived not only from his parentage but from his religious status as the son of Inti, the sun god...