asphalt building cement concrete construction debris fossil fossils highway leaf leaves pave paving road Road construction road debris street street scene texture work avenue lane median passing lane pavement streets streetscene stripe stripes thermo striping white white stripe black ceiling colorless colourless commute dark DC Federal Triangle gray grey grim metro repetition station structure subway tiles transportation tunnel Underground Washington abstract architecture city concert concret contemporary geometrical glass hall Jordanki line lines modern modernist pattern Poland shape shaped shapes Torun wall down going down hand railing handrail long way long way down metal railing rails safety secure shade shadow stairs steel steps sunlight