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 abstract architectural business-district city city-scapes city-views color colored colour coloured commercial-building contemporary contrast contrasting distance distant elements exterior external glass heights light linear lines metropolis metropolitan-area office-buildings rectangles rectangular reflections skyscrapers tower-block urban-area walls wealth windows accommodation architectural-elements balconies balcony business commerce concrete costly curved edges expensive hazy recessed surfaces towering towers tree antenna cloud communicating communications communications-equipment concave connecting dishes distinctive electrical-signals electromagnetic engineering equipment mobile-phones parabolic parabolic-reflector pole radio-waves receivers receiving roof rooftop round satellite-dish satellite-dishes sending Signals sky steel steel-structure technical technology telecommunications telephones transmission transmissions transmitters transmitting wires art-glass coloration commercial decoration decorative geometric geometrical glass-panes lighting multi-colored multicoloured panes shadows shaped stained-glass sunlight sunshine window-frames window-panes appearances box-like holidays hotel hotels surface tourism tourists