PETERSBURG, Kentucky - Ken Ham's sprawling creation museum isn't even open yet, but an expansion is already underway in the state-of-the art lobby, where grunting dinosaurs and animatronic humans coexist in a Biblical paradise. A crush of media attention and packed preview sessions have convinced Ham that nearly half a million people a year will come to Kentucky to see his Biblically correct version of history. "I think we'll be surprised at how many people come," Ham said as he dodged dozens of designers working to finish exhibits in time for the May 28 opening. The $27 million project, which...