U.S. Post Office - Credit: Wikimedia Commons
Ottumwa City Hall is the official seat of government for the city of Ottumwa, Iowa, United States. The building originally served as a post office and federal courthouse. It is part of the Central Park area, which includes: Ottumwa Public Library, Wapello County Courthouse and St. Mary of the Visitation Catholic Church. The building was listed on the National Register of Historic Places in 1976. Read more on Wikipedia
Source: en.wikipedia.org