This is a gathering point. In this picture, it is the gathering point of the casino.
If you are at the casino and there is a siren alarm this is where you need to go. Normally, many public places have one. This panel lets you know where to go in case of evacuation.
It's good to ask the question ;-)
Wow. You should write a guidebook for us visitors.
Ahah I know nothing about tourism but in my business this pictogram is important ;-)