arches decoration lights music opera opera house wood Australia beach buildings city house ocean sea Sydney architecture beam building culture girder glass iconic landmark modern New norway norwegian oslo sightseers style tourism tourists walkways white windows boating boats buoy Cardiff Bay marina sky summer wales water elements interior wall aluminium braille discs metal pattern surface texture panels silver couple man reflections two woman flagstones leisure pavement pedestrians people sidewalk stroll walk concave concavities convex panel slope steps uneven