In the early 1900s, Swan Turnblad ran Svenska Amerikanska Posten, America’s largest Swedish-language newspaper. So he built a mansion befitting a news baron at East 26th Street and Park Avenue. It’s an exquisite old castle, erected in an era where craftsmanship was both prized and unhurried. The woodwork and stone carving are breathtaking, as are the handmade tile stoves imported from the motherland. And because Turnblad donated the home to the American Swedish Institute in 1929, it’s one of Minneapolis’ few grand old structures to be preserved in close to its original state.