Location: Shorewood, Minn. Price: $5,750,000 The Skinny: This 8,650-square-foot Dutch Colonial, which comes with a 1,450-square-foot carriage house, was originally constructed in 1906 for Edmund Longyear, the founder of mineral drilling company Boart Longyear who owned 90 acres of land on Lake Minnetonka. Later, the estate became the summer home of George Nelson Dayton, son of George Draper Dayton—founder of Dayton’s Dry Goods Store, which later became the Target corporation—and grandfather of current Minnesota Governor Mark Dayton. The Daytons developed the land into a working farm called Boulder Bridge Farm. In 1976, a real estate developer who had grown up across the street from the farm bought the property and began converting it into 44 homesites. He kept the impressive Longyear House and the surrounding four acres, for himself and his family, though, restoring parts and enhancing others—they expanded the kitchen, added a pool and hot tub, enclosed a porch to create the formal dining room, and installed a movie theatre. Now, with the kids all grown up and moved out, they’ve put the four-acre estate on the market for $5.75M.