“Scotty’s Castle” (or Death Valley Ranch), is located in Grapevine Canyon in the far north of Death Valley National Park.  Construction, in the Mission Revival and Spanish Colonial Revival architectural styles, began in 1922, and cost $1.5-$2.5 million.  It is named for Walter Scott, also known as “Death Valley Scotty”, who convinced a wealthy friend (Albert Johnson, a Chicago insurance magnate) to build the house.

Links:    NPS info      Detailed history