Dobbin Round Barn - Credit: Wikimedia Commons
The Dobbin Round Barn is a historic building located near State Center in rural Marshall County, Iowa, United States. The true round barn was built in 1919 by Ike Inqersol and Amos Thomson. It features white vertical siding, a two-pitch roof, louvered cupola and a diameter central silo. The barn has a diameter of . with The barn has been listed on the National Register of Historic Places since 1986. Read more on Wikipedia
Source: en.wikipedia.org