It shall be the duty of each and every railway company, subject to the provisions herein, to provide and maintain adequate, comfortable, and clean depots, and depot buildings, at its several stations, for the accommodation of passengers, and said depot buildings shall be kept well lighted and warmed for the comfort and accommodation of the traveling public; and all such roads shall keep and maintain adequate and suitable freight depots and buildings for the receiving, handling, storing, and delivering of all freight handled by such roads.