The Spire is halfway? Two weeks ago, it was still a round hole in the ground. Aqua, across the river, seems a little less than halfway up.

Spire site three weeks ago:
http://www.emporis.com/en/il/im/?id=597678
and many other buildings:
http://www.emporis.com/en/wm/ci/bu/cs/?id=101030