Ключевые слова: abstract, bright, cave, center, concepts, corridor, dark, diminishing, distressed, empty, end, entrance, exit, glow, grunge, guidance, hall, hope, horizontal, inside, journey, light, long, mystery, nobody, old, orange, pathway, perspective, prohibited, route, scared, scary, security, shelter, shine, space, stone, sunbeam, through, track, transportation, travel, tube, tunnel, underground, unknown, urban, way,