Alfred E. Clarke Mansion

Alfred E. Clarke Mansion - Credit: Wikimedia Commons

The Alfred E. Clarke Mansion, also known as the Caselli Mansion, Nobby Clarke's Castle and Nobby Clarke's Folly, is a mansion at 250 Douglass Street on the corner of Caselli Avenue in Eureka Valley, San Francisco, California. Built in 1891 by Alfred "Nobby" Clarke, it has been a hospital and is now an apartment building. It became a San Francisco Designated Landmark in 1975. Read more on Wikipedia

type: historic site
date from: 1892

Source: en.wikipedia.org