includes a parade, various events, and vendors. Rockwell City also hosts the annual Calhoun County Expo, Calhoun County's county fair. Rockwell City was selected as the location for the county fair in a county-wide election in 1980. Prior to that time, Calhoun County had two county fairs, one in Rockwell City and one in neighboring Manson. A 1979 state law, however, required counties to select a single county fair to be the "Official State Fair" which necessitated the vote and consolidation of county fairs in Calhoun County (among other Iowa counties). Landmarks Calhoun County Courthouse. The courthouse was constructed in 1914, with an architectural style of Neoclassical Revival and outer walls of limestone, with a red clay tile roof. Calhoun County Historical Museum. Formerly the building of the Rockwell City High School, this building has been home to the Calhoun County Historical Museum since 1986. The museum traces its origins back to 1902 and seeks to preserve documents and artifacts related to the history and people of Calhoun County. As of January 2023, the museum is open on Sundays from 1-3pm from June to September or by appointment. Rockwell City Bridge. One of two rainbow bridges in Calhoun County (the other being in Lake City), this bridge was built in 1915 and put into disuse with the realignment of U.S. Highway 20 in 1981. The bridge was added to the National Register of Historic Places in 1998. In 2020, the bridge and some adjacent land was turned into a local park. Pop culture On the December 18, 2003, episode of Jeopardy!, the $500 answer in the category "U.S. City Nicknames" was "Rockwell City in this state calls itself the 'Golden buckle on the Corn Belt.' " See also List of cities in Iowa References External links Chamber of Commerce Graphic-Advocate Newspaper City-Data Comprehensive Statistical Data and more about Rockwell City Cities in Calhoun County, Iowa Cities in Iowa County seats in Iowa