accommodation angles angular apartment blocks apartments appearances architecture balconies balcony box-like building city complex contrast contrasting dark Designs detailed distinctive elements exterior external glass heights high high-rise light linear lines metal modern modernistic multi-storey multi-story plain quality short-term straight structures style supports tall tower towering units value views windows architectural-elements buildings business city-scapes city-views colors colours commerce concrete contemporary costly distance distant edges expensive hazy perspectives recessed rooftops Singapore skyscrapers surfaces towers walls wealth curved tree architectural commercial curves surface urban-area arched arches colorful colourful decorated façade flowers gardens greenery grime heritage historic levels low patterns shapes Sizes styles variety