angles appearances architectural architecture box-like buildings business-district CBD circular city city-scapes city-views colors colours concrete contemporary contrast contrasting distance distant elements exterior external glass heights high high-rise light linear lines modern office-buildings perspectives photographer reflections round rounded Singapore skyscrapers style views walls wealth windows building landmarks market Mexico Mexico City skyscraper stock bank big block blue bottom build business businessman businesspeople career company corporate daylight defense europe metropolis office offices urban work black business district city scapes city views dark high rise office buildings shade shady-side