Izumo-taisha (Izumo Grand Shrine) is one of the most ancient and important Shinto shrines in Japan. A style of architecture, taisha-zukuri, takes its name from the main hall of Izumo-taisha. That hall, and the attached buildings, were designated National Treasures of Japan in 1952. The main structure of Izumo Oyashiro was built in the Taisha style, the oldest style of building shrines. An impressive sized gable-entrance structure is built for the main structure, which gave the name of The Great Shrine or The Grand Shrine. The main hall (honden) bears an enormous chigi (scissor-shaped finials at the front and back ends of the roof).