Lockwood–Mathews Mansion - Credit: Wikimedia Commons
The Lockwood–Mathews Mansion is a Second Empire style country house in Norwalk, Connecticut. Now a museum, it was built in 1864-68 for railroad and banking magnate LeGrand Lockwood. The 62-room mansion was listed on the National Register of Historic Places and was declared a National Historic Landmark in 1978.. Read more on Wikipedia
Source: en.wikipedia.org