In this city, part Old South and part Midwest, we were taken on a tour of Old Louisville, a 45-square-block residential community. We were fascinated that such a large and pristine historic area could have survived. Louisville was developed on 19th-century industrial fortunes. Walking courts remained and fine homes were built where the great Southern Exposition of 1883 had been. But in the 1950s and ’60s, homeowners moved to the suburbs, and the big old houses began to deteriorate. Fortunately, enough farsighted people chose to stick it out. The visit inspired our latest book, Old Louisville.