Sandercock's? I only caught a glimpse of the outside, I'll search around and see if I can find that piece on it again. I heard them talk about the tunnel or tunneling wasn't quite sure? Tunneling is definitely on the practice agenda this summer though!
*Edited to add - Found it! Very cool bldg! Love the windows and viewing deck. Also, had to take a look at her Pitching Coach's site, hadn't looked at Rita Gilman's stuff in a while but man she's had some big names over the years!