Greiss was among the twenty artists invited by the Louvre Museum to participate in their project “Regards du Louvre” for their 230th anniversary. For the occasion, he created Le premier musée d’enquête universelle, a visual travel essay reflecting on early 21st-century civilization through archival exploration and cultural contrasts. The work delves into the paradoxes of socially constructed ideals and cultural limitations, exploring the commonalities and differences between Western and Eastern worlds, and examining how people’s consciousness, belief systems, and behaviours relate to their environment, and how feelings, memories, and objects react when repositioned within an institutionalised and sacred environment.