Architect Santiago Calatrava’s proposed twisty spiral skyscraper has caught the imagination of the public. “Whatever it expresses, the twisting tower clearly has struck a chord with the public. Consider the nicknames already given to Calatrava’s skyscraper — the drill bit, the big screw, the twizzler, the birthday candle. The twisting tower also is a hot topic today among architects and architecture students. As designers explore new ways to break out of the old box, they prize buildings that suggest motion and feeling. Calatrava’s design promises to bring to the skyscraper the same Baroque exuberance with which Frank Gehry has infused fresh vitality into the once-staid world of art museums and concert halls.”