Six tea houses were located in the old "Ninomaru" garden, including Tashun-en, Yamashita Oseki, Yoho-tei, and Fushin-tei. A reconstruction of the thatched "Sarumen Chaseki" (猿面茶席) is located in the tea house area of the "Ofukemaru" and in the Tokugawa Museum. The Sōketsu-tei (霜傑亭), the largest one, was built in the "sukiya" style. In an excavation survey, a site was identified almost exactly matching that of the Soketsu-tei as depicted in "Oniwa Ezu". Today, cobblestones are placed to mark where tatami mats would have been, rubble and plaster where the hallway was, and gravel on the other surfaces for an easy understanding of the original structure.