Pieces of architectural history sit on Milwaukee's south side -- a row of four duplexes and two cottages designed by Frank Lloyd Wright more than 90 years ago for low-to-moderate-income families.

But years of makeovers -- aluminum siding was added to one house -- rendered some of them shells of their former designs. Now a non-profit group wants to restore the Frank Lloyd Wright charm to one of the single-family homes -- right down to the crushed quartz stone-infused stucco on the exterior.