of the Christian Church (Disciples of Christ) denomination. Grace-St. Luke's Episcopal School, a coeducational parish day school established in 1947, serves over 500 students in PK - 8th grade. Known as GSL, the school is located at the corner of Belvedere Boulevard and Peabody Avenue. Immaculate Conception Cathedral School, located on Central Avenue, is a coeducational elementary school and an all-girls college preparatory high school. Idlewild Elementary School on Linden Avenue, part of the Memphis City Schools system, has been called "Midtown's Best Kept Secret." Just outside Central Gardens is Central High School, a public high school (grades 9-12) in Memphis, Tennessee. It was founded in 1897 and is considered the first high school in Memphis; Central is often called "THE" High School. It is a part of the Memphis City Schools Optional School system where it is recognized as a school specializing in college preparatory programs. Central High's building is on the List of Registered Historic Places in Tennessee. From 1955 until 2001, the main library of the Memphis Public Library System was located in Central Gardens at the corner of Peabody and South McLean. Architecture Central Gardens, composed of approximately 83 blocks, 1,540 structures and in Midtown Memphis, has an architectural style that is highly eclectic. It reflects the prevailing tastes among early twentieth century middle class Memphians, and the best in urban residential community planning and architecture of that period. The wide variety of architectural styles works well because of uniform setbacks, cornice heights and massing, and the characteristic use of such details as front porches, bay window, porte-cochère, and leaded glass. The building materials include brick, limestone, stucco, clapboard, and wooden shingles, with many houses constructed of a mix of two or three of these. Workmanship is of a consistently high quality, and the detailing is extremely rich and well-conceived. With only a few exceptions, the architecture is more "mid-American" than "Southern"; according to architectural historian Vincent Scully, Central Gardens houses bear a closer resemblance to those in Oak Park, Illinois rather than to those in Natchez, Mississippi. The most prevalent architectural forms found in the district are the American foursquare and bungalow. Principal styles include Colonial Revival, American Craftsman, Eclectic, Mediterranean Revival, Mission, Neoclassical, Prairie School, Queen Anne, Tudor Revival, and Shingle style. While this architecture is fairly common, the superior quality of design, workmanship, materials and details is significantly uncommon. The mix of architectural