Hiram Ramsdell House - Credit: Wikimedia Commons
The Hiram Ramsdell House, also called the Octagon House, is an historic octagonal house located at High and Perham streets in Farmington, Maine. Built in 1858 by mason Cyrus Ramsdell, it was added to the United States National Register of Historic Places on December 4, 1973. Read more on Wikipedia
Source: en.wikipedia.org