Cadillac Hotel - Credit: Wikimedia Commons
The Cadillac Hotel is a historic building from in the Tenderloin neighborhood of San Francisco, California, U.S.. It was the first non-profit single-residence occupancy (SRO) hotel in the Western United States. Since 2015, the first two floors of the building is the home to the Tenderloin Museum, a cultural history museum dedicated to the neighborhood. It was called the A.A. Louderback Building, and nicknamed "The House of Welcome" during the early 20th-century. Read more on Wikipedia
Source: en.wikipedia.org