places of more interest

I circled structures here. The upper right looks like a cross on the edge overlooking the stadium or ampitheatre. The upper left could be trees? Then there is the missile and parking lot. (Or is it a skyscraper?) On the middle left I have circled some rectilinear structures inside the stadium. The cross is most intriguing as it is where we would put it for one of our outdoor cathedrals. The original source is http://www.msss.com/moc_gallery/m07_m12/images/M12/M1200017.html