Old Winters Ranch/Winters Mansion - Credit: Wikimedia Commons
The Old Winters Ranch/Winters Mansion, near Carson City, Nevada, was completed in 1864. Also known as Rancho del Sierra, it was listed on the National Register of Historic Places in 1974. It was argued to be significant for its historical associations, for its architecture, and for its "continuing educational possibilities." and Read more on Wikipedia
Source: en.wikipedia.org