Above the second floor of the tower are other State offices. The eighteenth floor is designed as an observation tower, which affords a panoramic view of the entire Bismarck-Mandan vicinity, taking in Fort Abraham Lincoln State Park, Fort Lincoln, the State Penitentiary, the curving river with its wooded lowlands, the gray-blue bluffs beyond, and, all around, the rolling prairie. 2. LIBERTY MEMORIAL BUILDING (_open weekdays 9-5_), SE. of the Capitol, a memorial to World War dead, designed in 1921 by Keith and Kurke of Fargo, houses the North Dakota State Library Commission, State Historical Society of North Dakota, and its museum and library. A four-story structure of Classic design, with a base of Minnesota granite and walls of Bedford limestone, its Ionic columns rise gracefully above the grass-covered terrace. The massive bronze doors of the west facade lead into a corridor paneled in Italian travertine with a trim of Kasota stone. The graceful double stairway which rises across the corridor has marble balustrades and travertine newel posts. Left of the stairway is the historical society library exhibit room, and right is the State library commission which has general supervision of all public libraries in the State. On the ground floor are the main offices of the State historical society library. The offices of the historical society are on the second floor. This society was founded in 1887, became a State department in 1905, and in addition to its work in collecting and preserving historical material has been especially active in building up the 46 State parks and historical sites. The HISTORICAL SOCIETY MUSEUM, on the second and third floors of the Memorial Building, contains excellent collections of North Dakota material. The Indian collection gives a complete picture of the life of the North Dakota Indian, showing examples of clothing, cooking utensils, pottery, knives, drums, saddles, war clubs, bows and arrows, canoe, and bullboat. It also includes many archeological finds made in the State. In the pioneer rooms are relics of early days of white settlement of the State. A military collection shows many types of guns and cannon in use since settlement. The natural history rooms contain fine displays of flora and fauna, fossils and minerals. An equestrian statue of Theodore Roosevelt, the plaster model by A. Phimister Proctor for the statue in Roosevelt Park in Minot (_see_ MINOT), is on the third floor, and nearby is the desk which Roosevelt used for most of his writing at his Badlands ranch. Many models of early forts, Indian villages, and river steamboats are on display.