Layton designed over one hundred public buildings in Oklahoma during his career . Twenty-two of his buildings are listed on the National Register of Historic Places , an Oklahoma state record . He designed the neoclassical Oklahoma State Capitol in 1914 and created the original plans to add a dome to the building , a feature which was not installed until 2002 . His works also include sixteen courthouses , including Oklahoma City 's Oklahoma County Courthouse , and forty-six public schools , including the first five high schools in Oklahoma City . Layton 's major projects include the campuses of the University of Oklahoma and Oklahoma City University . He designed some of the most prominent buildings on the University of Oklahoma campus , including the administration building , Bizzell Memorial Library , and Oklahoma Memorial Stadium . Several of Layton 's skyscrapers still remain in Oklahoma City , including the Skirvin Hilton Hotel and the Medical Arts Building , now known as the 100 Park Avenue Building . Layton also designed the since-demolished Halliburton department store , the Patterson and Mercantile Buildings , and the Baum Building , a replica of the Doge 's Palace in Venice . Eleven of Layton 's buildings , including seven on the National Register of Historic Places , survived the 1995 Oklahoma City bombing
Oklahoma City bombing
Oklahoma City bombing
Solomon Andrew Layton