On a summer evening, the overlook at the Rookwood Pottery in Mount Adams will be visited by at least a few, as it is one of the most romantic and fascinating hilltop vantage points in Cincinnati. One hundred years ago, though, this was the place to see and be seen. The fashionable Highland House, a world-class entertainment complex, put Cincinnati on the cultural map, and the city became known as "the Paris of America." Every weekend, crowds of thousands...