Two hundred and fiftey people from across the country are in Minneapolis this week talking about the work of architect Frank Lloyd Wright. Wright fans, ranging from historic preservationists to scholars, are attending the annual conference of the Frank Lloyd Wright Building Conservancy. Conference participants are discussing how to preserve Wright's buildings, right down to proper remodeling of bathrooms in vintage Wright homes. One of those homes is in Minneapolis, known as the Willey House. It's now empty, and in need of repair. Lynda Waggoner, the head of the Wright conservancy, says the house marks a transition period between Wright's early and later styles.