2. The words “public building” in this Act mean churches and chapels, or buildings used as such, monasteries, novitiates, retreats, seminaries, colleges, convents, school-houses, kinder-gartens, day nurseries, infant asylums, charity work-rooms (ouvroirs), orphan asylums, church guild buildings (patronages), fresh-air camps, hospitals, clinics, convalescent or rest homes, asylums, shelters, hotels, rooming-houses of ten or more rooms, apartment houses having more than two stories and more than eight apartments, clubs, cabarets, concert-cafés, music-halls, moving-picture theatres, theatres, or halls used for similar purposes, outdoor cinemas, halls for public meetings, lectures or public amusements, municipal halls, buildings used for exhibitions, fairs, kermesses, stands on race-courses or used for public amusements, arenas for wrestling, boxing or hockey, or used for other sports, buildings of more than two stories used as offices, stores having a floor area of over three hundred square metres, railway, tramway or bus stations, registry offices and public libraries, museums and baths, rope tows, ski lifts and aerial tramways, and amusement park rides.