Tallest Building in the World before Burj, Dubai is completed.

We were on top of the World when we visited Shanghai World Financial Center. The guide told us that this is the Tallest Building in the World at this moment that we are, here standing in the observation gallery on the 100^th floor.  This is measuring up to the roof (net height), not of any other structure that stretches the height.

 

Pondering about how true the guide had said, I do find some info on WWW that does not directly say anything about this being tallest at the moment.  But deep in the heart of some, you decide.  I am also attaching a pix that is printed at the back of the ticket.