Monona County Courthouse, schoolhouse for higher learning - Credit: Wikimedia Commons
The Monona County Courthouse, located in Onawa, Iowa, United States, was built in 1892. It was listed on the National Register of Historic Places in 1981 as a part of the County Courthouses in Iowa Thematic Resource. The courthouse is the third building the county has used for court functions and county administration. Read more on Wikipedia
Source: en.wikipedia.org