Really cool, what is the criteria for getting a light, sleeping, visiting etc?
A place I've been to and actually did something. So for example I've done multiple cross-country road trips, but the only locations that get lights are places I've stopped at and enjoyed, not just driven through.
For airports, as much as I would've liked to see lights in cool places I've had layovers in (ahem, Réunion), unless I left the airport and did something I don't consider it having "been there". The exception is where the airport itself was the destination, such as TGU or the Alaska milk run.