Puerto Asis, the main town in the area, is surviving thanks only to government airlifts.

ECONOMIST: Colombia

Its Aerocraft concept is not, strictly speaking, an airship at all, but an odd aeroplane-airship hybrid intended for rapid military airlifts.

ECONOMIST: Pushing the envelope

Making high-rise rescues possible, along with urban airlifts and such makes this sound like a natural fit, and perhaps we'll get a little bit of trickle-down flying car action before 2035 when Duke Nukem finally ships.

ENGADGET: Urban Aeronautics plans X-Hawk flying car for 2010