(Wikipedia)

Advances in radio controlled models have made it possible for low-altitude aerial photography. This include real-estate, commercial and residential properties. 

Small scale model aircraft "Drones" offer increased photographic access to these previously restricted areas.  Drones are useful in any situation in which a full-scale aircraft would be dangerous to operate.

 

(Barco)

Aerial photography shows spaces in the word from a new perspective, making the world we know vast and unending. It puts emphasis on how small we are compared to our surroundings.