Big Heart Izumo is a striking cultural facility completed in 1999 in Shimane Prefecture. Designed by the renowned architectural team of Kazuhiro Kojima, Masao Koizumi, and C+A, this theater and hall complex exemplifies contemporary Japanese architecture. The building's distinctive form and spatial design reflect the architects' innovative approach to creating dynamic cultural spaces. Located in Izumo City, Big Heart serves as an important venue for performing arts and community gatherings. Its architectural significance lies in its bold composition and integration with the local urban landscape, making it a notable example of late 20th-century cultural architecture in regional Japan.