One of my favorite sections of Louisville, along with the Highlands, is Old Louisville and St. James Court. I love the variety of architectural styles. Xariel, my angel of death from Death Sword, lives in a Queen Anne on St. James Court. (Other angels from various stories live in the Highlands which is also home to Victorian and Italianate architecture.)
Louisville is the setting for my works-in-progress, including Serpent Fire (the sequel to Death Sword), my untitled "Zaphkiel" project, "Cathedral Girl" and "The Judas Dilemma" (titles pending).