accommodation angles appearances architectural architectural-elements architecture balconies balcony box-like buildings city city-scapes city-views colors colours concrete contemporary contrast contrasting costly distance distant elements expensive exterior external glass heights high high-rise holidays hotel hotels light linear lines modern multi-storey multi-story perspectives recessed skyscrapers surface tourism tourists views walls wealth windows curved business commerce commercial curves towering towers urban-area abstract business-district color colored colour coloured commercial-building green metropolis metropolitan-area office-buildings rectangles rectangular reflections tower-block angled appearance building corners distinctive edged edges framed frames geometric geometric-shapes gray grey height patterned patterns sharp sharp-cornered sharp-corners Singapore straight-up-and-down surfaces textured textures wall