Pieces such as sculpture from Greece and Rome, Japanese-style paintings and western paintings collected by Yasaburo KINOSHITA, the founder of Hotel Koyo and Marutama Kanko, were on display at Kinoshita Museum of Art adjacent to Ryotei Koyo.
なお、旅亭紅葉に隣接して、ホテル紅葉と丸玉観光の創業者の木下彌三郎が収集したギリシャ・ローマ彫刻、日本画、洋画などを展示している木下美術館がある。