books.google.com - Minnesotans can boast of a tresure trove of historic buildings, landmarks, and sites in our state. This new guide, useful for travel or armchair research, lists the more than 1,500 historic properties in our state on the famed National Register of Historic Places, the official list of historic properties...http://books.google.com/books/about/The_national_register_of_historic_places.html?id=Jhd-J3tA3wMC&utm_source=gb-gplus-shareThe national register of historic places in Minnesota
