Currently limited to United States
We all see airports around us growing bigger and bigger all the time. If you’ve ever got lost in one, frankly, you have my sympathies because I for one cannot imagine a more unsettling experience.
Bing has come up with novel solution, maps for airports. Currently, only 42 airports are mapped and only in the US, but many more are expected soon. The good folks at Bing have currently released this only for the Desktop version, but expect mobile versions (much more needed) to follow soon.
One possible sticking point could be how it can be used by shady sorts for all sorts of nuisance. Stay tuned!