The Mundaneum was an institution which aimed to gather together all the world’s knowledge and classify it according to a system developed called the Universal Decimal Classification. It was developed at the turn of the 20th century by Belgian lawyers Paul Otlet and Henri La Fontaine. The Mundaneum has been identified as a milestone in the history of data collection and management, and (somewhat more tenuously) as a precursor to the Internet.

The Mundaneum preserves a unique heritage recognized by the UNESCO. Archive center and space for temporary exhibitions, it highlights the legacy and ideas of its founders, the Nobel Peace Prize winner Henri La Fontaine and the father of documentation Paul Otlet.