http://www.slate.com/articles/technology/future_tense/2015/08/how_peru_is_using_drones_to_protect_machu_picchu_and_other_archaeological.html

The eight-armed drone proceeds along the busy tourist road that leads up to the world-famous Machu Picchu archaeological site in Peru, floating just above the tropical forest that lines each side of the roadway. It’s piloted by Peruvian Ministry of Culture drone expert Aldo Watanave, who watches the device intently, his eyes occasionally darting to the little video screen that I’ve agreed to hold for him.