In the head office of Etihad, near the elevator, I saw a sign with the title "Current location" and a QR code on it. Luckily some instructions were included and read the following: "Scan with any QE reader to open a map with your location". I've never seen this kind of location info before, but I guess it guides visitors in finding the right room in the building.
Of course I tried it and when scanning the code, you are re-directed to a webpage that displays a map of the building and highlights the position where you scanned the code.
The QR code works fine but is basicly a map that could have been shown right there on the wall. However, from a context perspective I guess the added value would be that you can take this map with you while you search for the right location. The location pin remains static, but a digital static map is better than no map at all.