On top of Olive Hill, in Los Feliz, is a compound for the arts. It is the legacy of Aline Barnsdall, who dreamed of an art utopia overlooking a valley. Although tiny and not as well known as neighboring Griffith Park, Barnsdall Art Park is not short on things to do. Today, you will find everything that Aline Barnsdall dreamed it would be–a home, a gallery, a theater, and a…