Early in July 2012 the Ministry of Culture of Peru invited a group of Russian geophysicists to perform a research on the archaeological complex Sacsayhuaman, namely, on the soil problems of the latter.
In the course of this work interesting historical and archaeological data were collected and a lot of photo and video coverage was done and used for production of a documentary called "The Living Stones of Sacsayhuaman" that you can view now (in Russian) in the opened access.
The added value of the video format of these "field" data is that it allows to unveil the unique character of the buildings of the ancient Incas both from the scientific point of view and from the viewpoint of independent researchers.
This documentary is released in English and Russian. Have a look at our documentary "The Living Stones of Sacsayhuaman" in English here: