The West Main District is one of the five districts of downtown Louisville, Kentucky. The district, or a portion of it, is listed in the National Register of Historic Places as West Main Street Historic District, due to its containment of some of the oldest structures in the city. The buildings of this district boast the largest collection of cast iron façades of anywhere outside New York's SoHo district. The district also features "Museum Row", a collection of several notable museums located within just a few blocks of each other.