Sakai Tai-an is a restoration of the original appearance of the National Treasure Tai-an, the only surviving tea room created by Sen no Rikyu. Based on research findings from historical documents, modern artisans have restored the interior of Sakai Tai-an in Sakai, and visitors can enter the tea room to experience the space. You can also see Muichi-an, a restoration of Rikyu's four-and-a-half-tatami-mat tea room from the Kitano Grand Tea Ceremony.