appearance bed bedding bunk bunk-bed carriages coaches compartments confined dark display displayed heritage historical history light luggage luggage-rack mobility passageway passengers power rails railway railway-yard reclining sleeper sleeping sleeping-compartment train trains transport transportation travel window carriage-connections carriage-couplings carriage-end chain connecting connection connectors coupling coupling-equipment couplings end equipment join joining steam-power steam-trains strength strong wood wooden carriage discarded fire sunset curve curved curves direction movement museum perspectives rail railways rust secure shine sleepers storage tracks