Looking up at Gateway Arch at night (St. Louis)

I was showing this picture I shot awhile back to a couple of my colleagues, a structural engineer and a draftsman. Both noticed the weld on the right but were puzzled as to what or where it was located. Sometimes we just need to look at something from a different perspective.

Gateway Arch (Wikipedia)

Gateway Arch St. Louis, MO (Wikipedia)

This post was originally titled “Mystery Shot” and several readers shared their thoughts on only the top picture. Since then I have added with lower picture to show how the perspective of a picture can change what your mind thinks it sees.