A City on the Move. The epicenter of business in the South, Atlanta has the fourth-highest concentration of Fortune 500 companies in the nation, including such iconic brands as Coca-Cola, Delta Air Lines, The Home Depot and UPS. It is also a hotbed for entrepreneurs and has the world's busiest airport; an affordable cost of living; and an abundance of shopping, dining, sports and other family attractions. Atlanta has a reputation as a hip, young city that is leading the nation in attracting young professionals. Never satisfied to rest on its  laurels, Atlanta is truly a city on the move.