We loved visiting this place. Built in the depression by a railroad/shipbuilding magnate as a “getaway” retreat from NYC, especially for his wife, a sculptor who suffered from TB. He (Mr. Huntington) was a nut about Spain and the Moorish architecture, and built an all-brick structure loosely following that style. It’s all part of the Huntington Beach State Park complex now. $5 for admission and an audio tour.
Not much furniture or anything of the interior left; but fun walking around, and the audio tour is excellent.