The project started in April 2009, as the current Tokyo Tower (333 meter high) is not give complete digital terrestrial television broadcasting coverage.
It is becoming taller and taller from day to day. And finally when completed, the tower schedule to be 634 meters, the tallest tower in the world.
Everyday more and more people visit near the Tokyo Sky Tree, this is the hottest tourist spot even for us Japanese people!
You can check today’s height of the tower … here