Here's One of the Most Advanced Spy Drone Ever Made: RQ-4 Global Hawk

The RQ-4 Global Hawk is a high-altitude, long-endurance unmanned aircraft system with an integrated sensor suite that provides intelligence, surveillance and reconnaissance, or ISR, capability worldwide. RQ-4 is flown by a Launch Recovery Element (LRE), and a Mission Control Element (MCE). The LRE is located at the aircraft base and functions to launch and recover the aircraft while en route to and from the target area.