The main buildings of both the shogu (main shrine) and betsugu (auxiliary associated shrines) of Ise-jingu Shrine are in general subject to regular rebuilding efforts every 20 years; such renewals are called "shikinen sengu."
伊勢神宮の正宮及び別宮では、基本的には20年毎に定期的に本殿を建て直しており、これを式年遷宮（しきねんせんぐう）と言う。