accommodation angles architectural-elements architecture balconies balcony buildings business city-scapes city-views colors colours commerce concrete contemporary contrast costly curved distance distant edges elements expensive exterior external glass hazy heights high high-rise light linear lines modern multi-storey multi-story perspectives recessed rooftops Singapore skyscrapers surfaces towering towers tree views walls wealth windows above angled architectural building chinese coloring colouring dated exterior-shutters façade functional gray grey height louver-blades louvered louvers louvre-blades louvred louvres painted plantation-shutters protection shape shaped shapes shelter shuttered shutters style surface symmetrical symmetry traditional wall window-coverings window-frames window-shutters wood wooden appearances window window-covering window-frame box-like city contrasting holidays hotel hotels tourism tourists