There's a whole spread about them here - O.C. History Roundup
And are rumored to make a return.
One does not have to have an opinion on religion (for or against) to marvel and appreciate these detailed models, of early California "Spanish" architecture.
I enjoyed them in my early visits to Knott's, when I was a child and teenager. And while, today (as an adult with a formed, & strong opinion about religion), I'm thrilled to hear .. a thematic piece of Knott's Berry Farm's history is making a return - As Knott's has been making new strides to bring back some of it's early "charm".