I'm a Helmut Jahn fan. I like his facades. His building designs rely more on facade detail than other features like massing and shape.
That one in Houston would have been 1,352 feet if I remember correctly.
That sure does look like Messeturm in Frankfurt, Germany which was also designed by Helmut Jahn.
http://farm5.static.flickr.com/4145/...b8c9b301_b.jpg