The comments on this video thread are spirited and pose some interesting points:

Commenter David M had this so say about this mysterious structure:

I agree, best use of a quadcopter I’ve seen yet.  I cannot imagine hiking this site and coming away with half as accurate a sense of it’s scale and perspective as I have now having been presented it with this articulated bird’s eye view.

Commenter Paul M also poses an interesting question in regards to prior Incan theories

Brien, Just an observation… I’m an Eng with 40 years of work behind me and was looking at the Terraces and this has been bothering me for years… The claim by archaeologists is that they were for crops, to make use of the hillsides to maximize yield….  But when you look at the amount of work versus the amount of flat area for growing it seems implausible that you would put such effort for so little return in the form of crops…  With the displayed abilities you would think the vast flat valleys would hold crop land and hillside used for housing and general purpose over the long run…  The questions I would ask is there any evidence that the Terraces were ever cultivated?

Maybe one day the Incan history will no longer be a mystery and we hope you like the video!