IT NEVER ENDS
Sacsayhuamán: On a hill overlooking Cusco, the monumental stonework at Sacsayhuamán forms massive zigzagged defensive walls of three tiers. Built by the Inca emperor Pachacútec in the mid-15th century, some blocks weigh as much as 300 tons, and they fit together seamlessly without mortar. The main pageant of the splendid Inti Raymi festival, one of the greatest expressions of Inca and Quechua culture, is celebrated every June 24 at Sacsayhuamán. Pisac Ruins: At the beginning of the Sacred Valley, just 45 minutes from Cusco, are some of the most spectacular Inca ruins in Peru. Equal parts city, religious temple, and military complex -- and perhaps a royal estate of the Inca emperor -- the ruins enjoy stunning views of the valley. A hike up the hillside to the ruins, beginning at Pisac's main square, is one of the most rewarding climbs you're likely to take. Ollantaytambo's Fortress...
