Along this trail was an Inca site at 5,090 m (16,699 ft) that they named Ajocancha.
Another large Inca site, Maucallacta, has been investigated by Peruvian and Polish archaeologists in recent years.
As with many other Inca sites, it also has a sophisticated irrigation system.
Two years before the war broke out, startling discoveries had been made at certain Mayan and Inca sites previously thought to have been researched to the full.
Why do they have to have one right on top of the holiest Inca site?
Most archaeologists now believe that the famous Inca site of Machu Picchu was built as an estate for Pachacuti.
After descending we visited an Inca site on the hill behind town, then drank in the beauty at the water's edge.
The monumental Inca site of Inkallaqta is situated in the Pocona Municipality.
Near the town, just off the road to Ayacucho, lies the large, well-preserved Inca site of Tambo Colorado.
Ollantaytambo is a town and an Inca archaeological site in southern Peru some 60 kilometers northwest of the city of Cusco.