You'll rub shoulders with some of the most influential companies in the U.S. when you make Coral Gables' Columbus Center your South Florida base, as many major players have offices in the building. The offices have relaxing landscaping and a water fountain, floor-to-ceiling windows on the penthouse level which provide plenty of light and inspiring views, secure underground parking and a business lounge. There's a high-end hotel across the road for clients staying over, and a choice of restaurants nearby.