Have you ever gotten lost in a hospital?
Some of them are so large and convoluted, they would make for an excellent relay race location. Seriously, you can go round and round in them.
I propose a new app for smartphones that has maps for hospitals, where you can input your destination (surgery center for example) and they will direct you. Even better would be a holographic/HUD type display that projected outward from the phone to lead you in the right direction. Or perhaps hospitals could employ color coded floor lines (a la Ender’s Game) for common destinations in their building.
Please make this happen!
Also, parking garages could use them. I’m tired of getting lost in those. Or if they could have directions to the nearest open spot, that would be great.