When visiting Chicago this past December, we went to the Skydeck on the 103rd floor of Willis Tower. Great photo ops, especially these - when we stepped out onto the Ledge, glass balconies that extend over the edge of the building (~1300 ft. straight down!). My husband said his palms were sweaty when stepping out. My son, on the other hand, had no problems and was very relaxed for the photos. :)
I followed the colors of a CSI challenge and used a sketch from another site.