Dan Protess, writer and producer of "10 Buildings That Changed America," joins the program. This new documentary airs Sunday, May 12th, at 9 pm Central on SDPB-TV. "10 Buildings That Changed America" is a journey that will take you across America and inside these groundbreaking works of art and engineering. It is also a journey back in time to discover the shocking, funny, and even sad stories of how these buildings were created. And it's a journey inside the imaginations of ten daring architects who set out to change the way we live, work, and play.