building high mirror reflexion sky skyscraper stckholm urban wall windows architecture barrier city concrete London staircase stairs steel structure America american California metropolis modern pacific San Francisco background copyspace decay grunge grungy messy paint scratched wood brick bricks house masonry stone stones texture Canary Wharf dark lights night train pavement pyramid pyramidal red sidewalk street demolition Nyberg ruin silo site warehouse corridor floorboards hallway passage passage way urban decay window