Ollantaytambo: This picture shows the scale of the terracing. Also notice the rough walls to the right contrasted with the even stone on the left. Temples and holy places in Inca culture were always built to exacting standards.

A view of Ollantaytambo and the Sacred Valley from the top of the ruins.

Our guide Solay is pointing out the temple stone. The stones are cut to exact dimensions and no mortar is used to keep these stones in place. Ancient Peruvians were incredible architects.