Remember when the downtown skyline of Broward County's largest city was just a scattered handful of high-rise office buildings? If you've lived in South Florida for more than a few years, of course you do. And if you go back more than two decades, you'll remember a skyline distinguished largely by the edifice widely known as "that big brown building with the neon that looks vaguely like an outline of the state of Florida." No more. The accelerating construction boom has led to an increasingly dense mass of big buildings downtown, including a surprising number of residential towers. One of those, the unfinished 42-floor River House, is already the tallest building in the greater metropolitan area. Now, when you approach downtown Fort Lauderdale from almost any direction, the looming skyline provokes roughly the same reaction you get heading into Miami -- this is a real city. Best view: from the sweeping arc of the flyover from eastbound I-595 to I-95 north. You probably don't want to be down there driving in it -- the construction and all it entails continues -- but it's great to look at from afar.