angles appearances architectural architecture box-like buildings business-district CBD circular city city-scapes city-views colors colours concrete contemporary contrast contrasting distance distant elements exterior external glass heights high high-rise light linear lines modern office-buildings perspectives photographer reflections round rounded Singapore skyscrapers style views walls wealth windows asphalt astronomical object background building business Celestial event cityscape colorful crescent dark empty floor landmark landscape monument moon night outdoor road rooftop sky skyline street tower travel urban view accommodation architectural-elements cream hotel Perth recessed surface business district city scapes city views color colored colour coloured high rise office buildings rectangles rectangular curve curved gray grey greyscale monochrome black shade shady-side city-street ladies mall men pedestrian pedestrian-mall pedestrians people sauntering shadow shadows sight-seeing strolling sunshine trees walkers walking women