This proposal for the new Museum of Architecture in Seoul is based on the idea that architecture is mainly about people and how spaces make them feel. The project focuses on creating different atmospheres using light, materials, proportions, and contrasts. Through an adaptive reuse strategy, the design preserves and recontextualizes unique elements of the existing building—called artifacts—by integrating them into the interior and exhibition. New volumes are added to house key functions: a Lobby, a Main Exhibition Hall, an Educational Center, and a Circulation Pathway. The result is a museum that feels open, accessible, and emotionally engaging.