Detail diagram of Burj Dubai's pinnacle

Here is a Detail diagram of Burj Dubai's pinnacle, you have to be inside the pinnacle to climb up the internal ladder. then at tier 25, 26 and 27 you stand on a internal grate and open a small door which takes you out onto each small balcony.

Below tier24, you have an internal room which has access by ladder. (you also have ladder access all the way through the pinnacle which starts way down at tier20B.) For everyone to understand the pinnacle is see through so you see the ladders. The spire tiers above tier24 is also see-through thus actually the pinnacle is visable from tier24 , or rises 80m above this tier. I wonder which is the last section to have see through windows? The workman is 1.8m to scale.