This is private property, you can't take pictures here!

This is a shot of the walkway between the Centene building in Clayton, Missouri and its associated parking garage, It's very pretty on a sunny day, and it's accessible from the sidewalk. I saw it, walked over, got two shots off, and was accosted immediately by a security guard, who informed me that I was trespassing on private property and could not take pictures there. The shoes of the security guard are visible at the top of this image.

Done