National Museum of Art, Osaka

The National Museum of Art, Osaka (NMAO; Japanese: 国立国際美術館, Kokuritsu Kokusai Bijutsukan, literally "National Museum of International Art") is Japan's only national museum devoted primarily to contemporary art. Located on Nakanoshima island in central Osaka, between the Dōjima and Tosabori rivers, the museum occupies a largely subterranean building designed by Argentine-born American architect César Pelli. With a collection of approximately 8,200 works, it holds the largest assembly of contemporary art in Japan, focusing on pieces from 1945 onward by both Japanese and international artists. The museum's distinctive underground structure, rare among major art institutions worldwide, makes it a notable example of modern museum architecture.

The museum's origins trace to Expo '70, the world exposition held in Suita on the outskirts of Osaka. The Expo Museum of Fine Arts was constructed as a permanent structure for the fair, and after Expo '70 concluded, the site became Expo Commemoration Park. The gallery was preserved and reopened on 15 October 1977 as the National Museum of Art, becoming Japan's fourth national museum. In its early years, budget constraints limited acquisition of original works, and the collection was temporarily supplemented with loans from the National Museum of Modern Art, Kyoto. The collection grew through donations and bequests, reaching 2,000 works by 1982 and exceeding 6,000 by 2011. A significant early acquisition came in 1978 when the museum obtained 828 works from the collection of Kaichi Ohashi, a chemist and businessman. By the early 2000s, the original building had aged and space had become inadequate, prompting a temporary closure in January 2004. The old structure was demolished and converted to a car park, while the collection moved to the current Nakanoshima location, which opened in November 2004. The museum closed again from 11 September 2023 to 5 February 2024 for renovation work, reopening with a special exhibition on ancient Mexico.

The NMAO collection comprises approximately 8,200 works by Japanese and overseas artists, with the overwhelming majority dating from 1945 onward. This makes it Japan's largest collection of contemporary art. The museum's collecting focus reflects its founding mission to elucidate relationships between the development of Japanese art and art from elsewhere in the world, though this goal proved challenging in early years due to budget limitations. While the collection is predominantly postwar, it includes earlier works by artists such as Paul Cézanne, Pablo Picasso, Max Ernst, Tsugouharu Foujita, and Yasuo Kuniyoshi. The museum presents its holdings not in permanent static displays but through thematic exhibitions that change several times annually, designed to introduce visitors to artists and works essential for understanding contemporary art. The NMAO participates in the Union Catalog of the Collections of the National Art Museums, Japan, alongside the National Museum of Modern Art, Kyoto (MOMAK), the National Museum of Modern Art, Tokyo (MOMAT), and the National Museum of Western Art, Tokyo (NMWA). An online version of this consolidated catalog remains under construction with selected works currently available.

The collection includes significant works by major figures in postwar and contemporary art. Among documented holdings are Ruth Asawa's Untitled (S.317, Wall-Mounted Tied-Wire, Open-Center, Five-Pointed Star with Overlapping Branches) from circa 1965, Cindy Sherman's Untitled #129 from 1983, and Murakami Takashi's 727 FATMAN LITTLE BOY from 2017, the latter produced in collaboration with MADSAKI for the background. These examples illustrate the collection's range across sculpture, photography, and contemporary painting and its commitment to both established and emerging voices in contemporary art.

The present museum building, designed by César Pelli and executed by César Pelli & Associates Japan, is located on Nakanoshima in Kita-ku, Osaka, adjacent to the Osaka Science Museum. The structure is almost entirely underground, a design choice that makes it exceptionally rare among world museums. Pelli drew inspiration from bamboo, with the externally visible elements intended to evoke reeds or bamboo growing from the earth, reaching toward the sky, and swaying in the wind. The building's subterranean design required sophisticated engineering: the structure resembles a submarine in its ability to resist water pressure, with a triple-layer envelope of concrete and waterproofing membranes approximately three meters thick preventing river water from penetrating the interior. Natural daylight enters the upper level through a glass roof. Functionally, the entrance, auditorium, restaurant, and museum shop sit just below ground level, while collection exhibitions occupy the second basement level and special exhibitions the third basement level. Storage facilities are also located underground.

The National Museum of Art, Osaka is situated on Nakanoshima, approximately ten minutes west of Higobashi Station in central Osaka, or about five minutes by foot from the same station according to alternative measurements. The island location between the Dōjima and Tosabori rivers places it within Kansai's cultural hub, near other cultural facilities and libraries, with convenient access to major business districts. As an Independent Administrative Institution under Japan's national museum system, the museum operates with regular closures on Mondays (or the following day when Monday is a holiday), during installation periods, and over the New Year holidays. The museum's website provides current information on exhibitions, hours, and any irregular openings or closings. Visitors enter through the ground-level plaza before descending to the exhibition spaces below.