High Quality Content by WIKIPEDIA articles! Society Hill is a neighborhood in the Center City section of Philadelphia, Pennsylvania, United States. The neighborhood, loosely defined as bounded by Walnut, Lombard, Front and 7th Streets, contains the largest concentration of original 18th- and early 19th-century architecture of any place in the United States. Society Hill is noted as a charming district with cobblestone streets bordered by brick rowhouses in Federal and Georgian style.