Evans House - Credit: Wikimedia Commons
The Evans House was built in 1893 by Doctor John M. Evans in Phoenix, Arizona. The -story brick residence has an unusual onion dome over the front entrance, rising from the semicircular front porch. The ground floor has seven rooms and was used as a residence, while the upper floor served as Dr. Evans' office and was reached by a separate exterior stairway. Read more on Wikipedia
Source: en.wikipedia.org