what is the point of the circle? I don’t see how it relates to a monorail at all.
The circle, which has about a 64 stud diameter, merely demonstrates that a curved closed loop can be constructed from 1×2 bricks. When constructed of transparent elements, and covered with tiles, that loop would serve as the monorail upon which a “brick built” Santa’s sleigh could fly when furtively elevated to roof level of the winter village.
