The ruins of Ollantaytambo is a tribute to the architecture. Large, solid, and with great views of the valley. For here the last Inca King escaped from the Spanish conquistadors. Climb the stairs slowly to avoid altitude sickness ('re at 2,800 meters high). Notes the work of the terraces and see if you find the two jaguars carved on the stone in one of the entrances. Open from 07 to 17.30. You can buy one ticket, but worth the full purchase Cusco.