And finally there’s the great Machu Picchu, the so-called lost civilization of the Incas. Machu Picchu was built around the year 1450 and was occupied for almost 100 years before the Spanish Conquest. This mesmerizing city was never discovered by the Spaniards and was literally forgotten until the early 20th century, meaning that most of its architectural wonders still remain intact. The hike up the hills is an adventure in itself, and this mysterious city looks most beautiful from the Inca Trail lookout point.