Of course, we have our areas that are "haunted" all the time in Altadena, such as the Cobb Estate (e.g "The Haunted Forest") and Gravity Hill. But this time of year, the 'haints come out in otherwise normal neighborhoods.
Granddaddy of 'em all is the "Haunted Yard" at 1640 Braeburn, which every year sets new standards in wretched excess (this is definitely NOT for the little ones!)
On the other hand, there's the more pastoral effect of this line of scarecrows at the corner of Altadena Dr. and Holliston: