The Mundaneum represents one of the most ambitious intellectual architectures of the twentieth century: a project in which knowledge organisation became inseparable from ethical, political and spatial imagination. Conceived by Paul Otlet and Henri La Fontaine, it sought not merely to catalogue books, but to coordinate the total documentary memory of humanity through bibliographies, images, newspapers, museums, libraries and classificatory systems. Its central instrument, the Universal Bibliographic Repertory, was designed to answer what had been written by any author and on any subject, without restriction of language, period or place; by 1934 it contained nearly sixteen million cards, arranged through the Universal Decimal Classification. The diagrams and archival images reproduced in the text, particularly the cataloguing room on page 8 and Otlet’s classificatory schema on page 16, reveal that the Mundaneum was simultaneously an archive, a machine, and a cosmogram: a material infrastructure for making the world intellectually navigable. As a case study, the projected World City, developed with figures including Le Corbusier, synthesised this ambition architecturally, imagining a civic centre where international cooperation, documentation and peace would converge. Yet the Mundaneum’s significance lies less in its incomplete utopianism than in its anticipatory force: its multimedia encyclopedia, networked exchange of knowledge, and scholar’s workstation prefigure later ideas associated with hypertext, the Internet and the World Wide Web. Ultimately, the Mundaneum demonstrates that archives are never neutral containers; they are instruments through which societies imagine order, justice and
URBANISM MEETS ART