On a tour of the Sacred Valley, you'll experience the heart of ancient Inca culture still living and breathing in its marketplaces and colorful indigenous peoples. Imposing Inca fortresses overlook the fertile, terraced valley as they cling from the mountainsides high above. Sleepy Andean towns like Pisac, Ollantaytambo, Urubamba, and Chinchero are built on and around archaeological remains left by the Inca and still maintain prehispanic...