St. Peter residents spent the weekend in a mostly soleMinnesota remembrance of the tornado that tore through their town a year ago today. In the time since then, roofs and windows have been replaced and broken tree stumps have been pulled from the ground. The site where the city's Community Center once stood is now a vacant block and many other buildings---including over a hundred homes---have been torn down and carted away as trash. The city has long since tallied the loss in terms of numbers. But many homeowners in St. Peter regard their houses as much more than just shelter. In the last of a series of reports remembering the tornado, Minnesota Public Radio's Art Hughes looks at efforts to rebuild and preserve the historic buildings people as the heart of St. Peter.