above aerial-balloon angled angles apartment-blocks architecture backgrounds balloon below buildings cityscape colors colours condominiums flats flight-operation gondola height helium helium-balloon high high-rise modern motion movement multi-storey multi-story perspectives roofing roofs rooftops rooves safe safety scene scenery scenic secure secured shape shapes sights sightseeing Singapore skyline streets traffic views appearance arched arches architectural Australian bricks brickwork city Colonial community construction contrast contrasting craftsmanship exterior external frontage historic historical history library light limestone old ornamental ornamentation period prestige prestigious protection protective public roof shade shadows solid stonework strong style sunlight sunshine surface surfaces two-storey two-story urban view walls windows accommodation architectural-elements balconies balcony business city-scapes city-views commerce concrete contemporary costly curved distance distant edges elements expensive glass hazy heights linear lines recessed skyscrapers towering towers tree wealth appearances box-like holidays hotel hotels tourism tourists