Shimane is not a famous prefecture, however, there has a great history, nature, and buildings.
Shimane is the main place of Japanese myth "Kojiki," and there has a big shrine in Izumo. That was called Izumo Taisha, and many people come there. First of all, Japan is polytheism, which means enshrining many gods, and Izumo Taisha enshrines Okuninushi who is the god of matchmaking. Izumo Taisha was founded in myth, so people could not know when it was built.