As befits a regional and university center and a city which seriously aspires to become a national capital, Banja Luka has a large and handsome hotel (which, curiously enough, is still called "Bosna") with an elevator. The attentive host, the hotel's director, taped a note to the elevator's door, warning that, due to frequent electrical outages, guests can utilize this useful device only at their own risk. Gamblers may wind up spending a few minutes, hours or days in the elevator. It all depends