angles appearances architectural architecture blue box-like buildings business-district city city-scapes city-views color colour contemporary contrast contrasting distance distant distinctive elements exterior external glass gray grey heights high high-rise light linear lines modern office-buildings offices perspectives rectangles rectangular reflections reflective style views walls windows curve curved Hong Kong office buildings skyscrapers wealth arc bow british building classic decorative door entrance house portal stone CBD circular colors colours concrete photographer round rounded Singapore appearance arched arches christian church church-complex community cross cupola decorated domed edged edges faith height heritage historic historical history ornament ornamental ornamentation patterned patterns religious roof roofing surface surfaces textured textures traditional colored coloured skies sky business district city scapes city views