What do you get when you mix the Prairie School principle of blending a home into its natural surroundings with Mid-Century Modern minimalist aesthetics? You'd get something that looks a lot like this incredible Winnetka home. Designed and built in 1957 by architect William Deknatel, the 3,500 square foot home is unmistakably characteristic of Frank Lloyd Wright's Prairie style of architecture, but it is also very modernist at the same time. We'd call it Prairie Mod, but that name is already taken (by a great blog). The home is built of stone, mahogany and glass and sits low to the earth, and in some ways is almost reminiscent of Wright's Fallingwater house in Pennsylvania. Adding to its organic charm, the home also sits right up against Lake Michigan and has its own private beach. This Prairie School/Modernist masterpiece first listed last summer for $3.75 million, and took a price chop in September knocking the current ask down to $3.5 million.