The Old Capitol Building, located in Iowa City, Iowa, is a historic structure that served as the first state capitol of Iowa. Built in 1840, it features a distinctive dome and Greek Revival architecture. The building played a significant role in the state's early government and is now a National Historic Landmark. Today, the Old Capitol Building is part of the University of Iowa campus and houses a museum. Visitors can explore its rich history, including exhibits on Iowa's legislative past and the building's restoration efforts. It remains a symbol of the state's heritage and commitment to education.