commuting metro movement moving Nyberg passenger scene scenery speed subway transport travel tube tunnel Underground urban communication crowd going home Mexico on the move passengers people public transportatio railroad train black ceiling colorless colourless commute concrete dark DC Federal Triangle gray grey grim repetition station structure tiles transportation Washington Cerro de la Silla city landmark metropolitan Monterrey mountain Parque Fundidora skyline bar barred cottage decoration frame iron bar security wall window wrought brown grunge grungy iron iron bars metal rust rusty rusty metal urban decay backstreets barred windows bars brick walls buildings city environs electrical wiring lane laneway lights quiet textures walls background bolden gold golden bars texture derelict old building peeling paint