Once inside the Iglesia San Francisco de Asis in Plaza Bolivar, the lady behind the cluttered desk motions us towards a door at the side of the church and explains that the nativity scene within is a permanent display, not just for Christmas, and is one of four in Casco Viejo. It’s an extensive and impressive display, but passing through the next door we are cast into some sort of ethereal, pretend world. In this ante room there is, in working model form, an entire replica of an American town at Christmas time. Fairgrounds are alive, music ekes out from various venues, the Big Top issues sounds of a crowd….lights…