Here’s a weird idea which I don’t have time or the skills to implement.
You can treat this as a request if you like but otherwise, I’m just throwing this out there.
It would be interesting to have a map where you can “fly” between two areas on board a plane.
It would have 2 main areas for RP / whatever - and each area would be connected with a kind of “airport”. When you go through the airport and security scanner thing, you get on board a “plane”. You only ever see the inside of the plane, but while you’re inside it, it makes sounds and movements like a real plane, including a simulated landing.
Once the “plane” has landed, you can get off, walk out through the other airport and you’re in the second area of the map.
EDIT: Obviously the plane doesn’t actually go anywhere, it just simulates being in one. It could be a fairly short flight.