Archaeologists in Denmark have unearthed a portion of a massive Viking hall that may be connected to King Harald "Bluetooth" Gormsson, who reigned from A.D. 958 to 986, during the Viking Age. The structure, which is located in North Jutland, a region that encompasses Denmark's northernmost tip, is "the largest Viking Age find of this nature" in the past decade, and measures 131 feet (40 meters long). So far, only half of the building has been excavated, and archaeologists think it was built sometime between A.D. 950 and 1050... The hall's design is similar to those of other structures in...