What were the benefits of building Machu Picchu high in the mountains?
It would be impossible to build such a site in the high mountains if the substrate was not fractured.” Besides allowing the Inca to more easily find and fit stones together without mortar, the faults provided other advantages.
Why was Machu Picchu built in its chosen location?
Likely built as a refuge for elite members of Inca aristocracy, the fortress was constructed on the eastern slopes of the Vilcanota mountain range, about 80 miles (130 kilometers) from Cusco, the capital of the empire. Its strategic location was chosen with admirable success.