A mere half-dozen readers have written Swamplot to ask about this strange multi-story steel-framed structure that’s been going up next to the Lowe’s on I-10 between Blalock and Bunker Hill — or its twin on the site of the former Casa Elena restaurant across the freeway from The Woodlands at 26824 Interstate 45 North. And we’re guessing a few more of you are curious as well, but just haven’t had the time to send in your photos and speculation. Capitalizing on the freeway mystery, the company behind the structure has set up a website at GuessWhatThisIs.com. (With indoor-skydiving facilities in 9 other U.S. cities already, iFLY has been through the drill before.)