This is Inca stonework at its best. This very well could be from the pre Inca. At the beginning of July 2012 the Ministry of Culture of Peru invited a group of Russian geophysicists to research the issues dealing with the soil of the archaeological complex of Sacsayhuaman. In the course of completing this task there were collected interesting historic and archaeological data and a substantial amount of photo and video materials that were provided the basis for production of this movie.