Today was the first day Tokyo Sky tree was open to the public. It is HUGE and can be seen anywhere you go in Tokyo! Have a look at their website here http://www.tokyo-skytree.jp/en/
It's got shops, shops and more shops! You need to stand next to it and look straight up to get an idea how big the tower is! We went there a few months back.
This has some good info, it looks like it is the biggest tower in the world.
and here http://www.obayashi.co.jp/english/special/2010032622.html
This is no small tower and to us in NZ we would consider it an eye sore but not the Japanese, this tower is a triumph to the Japanese, it holds a place like Tokyo tower and Mt Fuji, it is respected and very much embraced and liked, it's iconic everyone talks about sky tree!! I too find myself admiring it as it is a mean feat of engineering!!! Over the years I have been coming here I have seen it being built!! I can think back to the movie "always" (see my blog http://bruceinjapan.blogspot.jp/2012/01/always-sunset-on-third-street.html) Always was set to the building of Tokyo tower in the late 1950's