I looked up the stadium, couldn't get it from your link. The arch is in the background of the stadium. I wonder if that is the two bows arch? Friday night I dream't of a plane crashing into a building. I thought the building was yellow or had yellow borders or lines. It was weird. It also appeared to be like a landing pad. So I couldn't figure it out. However, looking at the stadium and the yellow dirt of the infield it is similar but in the dream there was a big X in the middle of the yellow circle.
I don't post here but read all the time, my significant other is with airlines, so I like to keep him informed of what is going on, Threat Matrix is best at keeping me updated. Forgive me if this has already been pointed out...I have been thinking of the 2 bows since the picture came out. I just went to silverdome site. http://www.silverdome.com/ and the picture posted on main page upper right hand corner is picture of stadium, on the ground (grassy area) appears to be a Bow (shape of bowtie), also appears it would exist on other side. Just a thought.