That new office tower slated for the site of the 12-year-old Bally’s, then Blast! Fitness building  (pictured at left) at the northeast corner of the Memorial City Mall will be the new American corporate headquarters of industrial gas manufacturer Air Liquide. And it’ll be 2 buildings, actually: A 452,000-sq.-ft. 20-story tower designed by Morris Architects in back, and a 145,000-sq.-ft.12-story office building designed by Gensler in front, facing the I-10 feeder road. It’ll be called Air Liquide Center, but as shown in the rendering above, the core of the 2-building sandwich will be an 8-level parking garage.