Ollantaytambo is a famous archeological site in Peru, second only to perhaps Machu Pichu. It is located at an altitude of 2,792 m (9,160 ft). Ollantaytambo town itself dates back to 15th century, and above it are the extensive terraces and temples of Incas. The terraces go as far the eye can see, covering the the valleys of the Urubamba and Patakancha rivers. There are also store houses on the slopes, various water diversion constructions and fountains, quarries, and defensive walls.