George John Wolf House - Credit: Wikimedia Commons
George John Wolf House, also known as the Wolf-Knapp House, is a historic home located at Hammond, Lake County, Indiana. The house was built in 1929–1930, and is a two-story, roughly L-shaped, Tudor Revival style limestone dwelling with a slate roof. It features a two-story round tower with a conical roof enclosing a winding staircase. Note: This includes and Accompanying photographs. Read more on Wikipedia
Source: en.wikipedia.org