Louisiana's State House. The Louisiana State Capitol, which has thirty-four storeys and stands four hundred fifty feet tall, is Baton Rouge's highest skyscraper. The building is situated on 27 acres of land and is surrounded by capitol gardens. It was designed by New York architecture firm Edward Larrabee Barnes and Thomas Jefferson Davis and built from 1959 to 1964. The tower contains the Legislative Office Building, which houses members of Congress when they are in Baton Rouge, as well as their staffs. It is not open to the public. Behind the Legislative Office Building is the Governor's Residence, a twenty-five-room mansion that was once owned by eight governors over seventy years. The residence is not open to the public either. Other than government offices, The State House is the only major building in downtown Baton Rouge. It is located at 301 N. Boulevard Street. The tower has become a popular place for photographers to shoot pictures due to its unique design. When it was first built, the State House was the highest structure in Louisiana. Today, that title belongs to the World Trade Center Baton Rouge, which is one hundred forty-three feet high and was completed in 1999. The Willis Tower (formerly known as Sears Tower) in Chicago is the current record holder with a height of 472 feet.