as events only took place occasionally here, regular service was not provided along the route. the monument is a massive flat-topped circular structure, surrounded by lower semi-circular walls, separated from each other about 2,40m,  and this empty space was filled with loose rocks and earth. so the sun returned ten degrees, by which degrees it was gone down. so if the screen is 60" wide, the projector needs to be 120" from the screen. it is understood that the two buildings in question are not for residential purposes, but for general use by the community. 