Dr. Fisk Holbrook Day House - Credit: Wikimedia Commons
The Dr. Fisk Holbrook Day House, also known as Sunnyhill Home, is a historic house at 8000 West Milwaukee Avenue in Wauwatosa, Wisconsin. Built in 1874, it was the home of Doctor Fisk Holbrook Day (1826-1903), a prominent local physician and amateur geologist. The stylistically eclectic house was built in part to house Day's large collection of artifacts, and is the Milwaukee suburb's only major 19th-century mansion. It was declared a National Historic Landmark in 1997. and It is privately owned and not open to the public. Read more on Wikipedia
Source: en.wikipedia.org