The new paradigm of the storage facility does not originate from the traditional approach to museums. When the storage facility faithfully fulfills its essential function of preserving and managing artifacts, and this attitude is fully realized architecturally, the public comes to experience not the artworks themselves, but the very function and role of the storage facility. Paradoxically, this approach holds the potential for a new kind of storage facility. To secure operational efficiency while minimizing the volume of earthworks, we redefined the existing site levels and proposed a storage layout elongated along the east-west axis. Designed as a single-story space with a modular structural system, the storage facility allows easy artifact transport, accommodates diverse storage conditions, and enables flexible expansion and subdivision of rooms. This horizontally extended storage space forms interstitial spaces where artificial environments and natural flows overlap. These integrated spatial mechanisms create a framework on the site that generates various atmospheric conditions in concert with both interior and exterior environments. Overall, the entire storage facility forms a unified landscape, engaging with its natural surroundings through continuity, scale, site specificity, and groundedness―evoking a relationship akin to that of land art.