The North Dakota State Capitol is the house of government of the U.S. state of North Dakota. The capitol, a 21-story Art Deco tower, is located in Bismarck at 600 East Boulevard Avenue, and is the tallest habitable building in the state. On a 160-acre (0.6 km 2) campus that also houses many other government buildings, the capitol building and the surrounding office buildings house the state's legislative and judicial branches, as well as many government agencies.