Drone on

Unmanned aerial vehicles aren't just for spying on militants or taking out bad guys in terrorist hotspots like Fallujah or Aleppo anymore.

Commercial real estate developers, designers, engineers, brokers and marketers are increasingly relying on drones with high-resolution cameras attached to remotely survey land, envision what a building would look like or sell space to tenants or buyers.

Little wonder. Unmanned aerial vehicles, or UAVs, have proven themselves to be versatile and less expensive than traditional methods of capturing real estate images. With recent digital technological advancements, too, proponents say pictures and video turn out clearer and contain more detail than almost anything snapped by a handheld camera from a helicopter or airplane.