Traditional Culture Encyclopedia - Hotel reservation - What advertisements are usually made in the elevators of low-rise hotels?

What advertisements are usually made in the elevators of low-rise hotels?

I've seen several kinds. Either nothing is hung, even the annual inspection certificate of the elevator is not hung, and it is kept clean, or it is an advertisement such as tourism, because most of the users of hotel elevators are tourists. And the specialties of our hotel. I haven't seen much else