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 commerce concrete contemporary curved curves edged edges framed frames gray grey height monochrome palm-trees patterned patterns perspectives sharp skyscrapers steel surface surfaces textured textures trees wall walls angled architectural balcony-gardens blooming costly designed expensive flowering flowers plants potted-plants safety shade shaded sheltered shrubs Singapore sunlight sunshine valuable apartment-blocks colors colours condominiums condos distance distant holidays recessed tourism tourists wealth art-deco condo condominium façade flats heritage historic protection sepia hazy rooftops towers