Another wacky one, courtesy of DARPA:
The Defense Sciences Office (DSO) of the Defense Advanced Research Projects Agency (DARPA) is seeking approaches to allow a small (Nano Air Vehicle to Micro Air Vehicle scale) air vehicle to be Teleoperated and Hover In Place (TeleHIP) in GPS denied environments. It is anticipated that the flight environment for this capability will be primarily in buildings or similarly sized enclosures. The development of a small unmanned aircraft system (UAS) capable of such missions would add a new capability to urban intelligence, surveillance, and reconnaissance (ISR) and provide increased situational awareness for warfighters.
