Named by the American Planning Association as one of the 10 great streets of America, Summit Avenue in St. Paul, Minnesota, boasts one of the longest stretches of extant Victorian-era mansions in the United States. Along the stately 4.5-mile tree-lined boulevard are three National Historic Landmark houses of railroad baron James J. Hill, legendary author F. Scott Fitzgerald, and Nobel-Prize-winning politician Frank B. Kellogg, and numerous other exemplary residences built between 1890 and 1920. Situated on a bluff high above the Mississippi River, Summit Avenue evaded the encroachment of nearby downtown St. Paul and many of the houses were restored by their owners starting in the 1960s and 1970s.