blue tower
Blue coloured Tokyo Tower on the ealier christmas lights
at Keyaki-zaka street in Roppongi Hills.

That’s for WORLD DIABETES DAY.
Over 100 landmarks lighted up in blue.
http://www.worlddiabetesday.org/wddgallery
You see the blue building at left side in the picture is
for Blue man Group performance.
Blue Man Group
http://www.blueman.com/
