The article describes the actions of the Museo dell'Ara Pacis towards an increasingly accessible, inclusive, and participatory exhibition design. Through progressive experiments, initially aimed at specific audiences and then extended to all, accessibility becomes a structural part of the cultural project. Multisensory devices, multiple languages, and collaborations with organizations and communities transform the visiting experience. The exhibitions thus configure themselves as spaces of relationship, choice, and active interpretation. Accessibility emerges as a lever for innovation and rethinking the museum as a public service.