It is an elevator shaft between TEMO GALLERIA(450m above) and TEMBO DECK(350m above) inside of Tokyo Sky Tree.
In night time, it is floodlit in blue.
From the outside , we can see like the following picture.
The related pitctures were in my Japanese post.
Sorry, my poor English ability 
nice one 🙂 how did you get that shot? anyways great capture!
Thank you, Aian.
The elevator car ceiling is partial transparent.
So, we can see the shaft below the part.
Fabulous shot of the elevator shaft. Great job!
Thank you, Terri.
Very well captured… like it.. 🙂
Thank you, Bams.
Incredible photo!
Thank you, Sartenada