autumn colors flowers nature plants textures bridge path rocks stones structures summer trail trees tunnel under aragon architecture border building canfranc green huesca mountain Spain station train cutout isolated lights railroads semaphore traffic traffic light trains warning abandoned chipped decay door doors old open ruined toilet urban decay grass grassland larch Mountainous landforms Natural landscape plant sky slope tree drive germany Harz locomotive quedlinburg rail Schmalspur transport travel vehicle amount chaos city civilization electric electricity energy massive post pylon wire wires diesel passenger tavel Belgium blue booth call communicate communication dial electrical electronic facility four handset kiosk phone ring telephone bushes direct easy future ground hike rough smooth straight terrain walk