The Old Capitol is a historic building located in Iowa City, Iowa. It served as the first state capitol of Iowa from 1846 until 1857. The building is known for its distinctive dome and Greek Revival architecture, making it a significant landmark in the area. Today, the Old Capitol is part of the University of Iowa campus and functions as a museum. It showcases the history of Iowa and the importance of the building in the state's early governance. The site is also a designated National Historic Landmark, attracting visitors interested in history and architecture.