ancient building city Copenhagen Denmark historical house Kobenhavn landscape New old spire tower view escalator escalators HDR metro moving Nyberg stair staircase stairway station subway tube blue coast line coastline cph DK habor harbour Hellerup sea sprintime summer water architecture block line office row series symmetrical symmetry urban window decorative direction ornate point weathercock weathervane wind arch light passageway sunlight sunlit vault chain cog crane derrick dock hoist hook load machine machinery quay wheel closed danish home merchant open shut wall bicycle bridge car Langebro street sun sunset traffic wire