Idea Museum, After Tomorrow (아이디어 뮤지엄, 내일 이후) is listed 5 September–29 November 2026 in the Auditorium Lounge at Leeum Museum of Art, 60-16 Itaewon-ro 55-gil, Yongsan-gu, Seoul 04348. The official Leeum homepage dates a CHANEL Culture Fund public project that reconstructs three years of Idea Museum discourse as a living lexicon. Hours Tuesday–Sunday 10:00–18:00; last ticket 17:30; closed Mondays, 1 January, Seollal and Chuseok. Leeum’s visit page currently lists paid admission only for Inside Other Spaces. The museum notices a temporary closure 1–3 September, before this opening.