Izumo-taisha
Izumo-taisha, also known as Izumo Grand Shrine or Izumo Ōyashiro, is one of the oldest and most important Shinto shrines in Japan. Its exact establishment date is unknown. Located in Izumo, Shimane Prefecture, the shrine is dedicated to the gods , who is known as the Shinto deity of marriage, and Kotoamatsukami, a group of heavenly deities. The shrine is famous for two major festivals held there. Many people believe that it is the oldest Shinto shrine in Japan, even older than the Ise Grand Shrine.