Check one more off the list of MLB ballparks visited as I joined several friends and colleagues to take advantage of our work trip to Kansas City and catch the Royals at Kauffman Stadium on a beautiful Sunday afternoon.  Barb, Dolores (pictured with DJB at left), Barb’s husband Rob, and Royce joined our hosts the Kempers for a great day at the ballpark.  Kauffman, built in 1973, is one of the earliest of the new modern baseball-only stadiums that helped turned Kansas City into a mecca for sports architects.  They just completed a major $250 million renovation before the start of this season.  The clean, modernist design has held up well and helped end the era of cookie-cutter multi-purpose stadiums. With two architects and the rest preservationists in our group, we spent a lot of time talking about the architecture.   But we primarily spent the day having a great deal of fun.  From the beginning, the Royals have come up with some great activities that make you smile.  It was Kids Day at the ballpark and kids …