Inspired by the previous two Observing Planetary Systems (OPS) workshops held in ESO-Chile and by the rapid evolution of exoplanet studies and Solar System exploration, we organised the Diversis Mundi workshop. The focus of this conference was to bring together the Solar System and exoplanet communities to put the Solar System into the context of the current knowledge of planetary systems and to understand all the known components of extrasolar systems. Around 100 researchers from both communities met and discussed these topics in a very collaborative and inspiring environment, and in a workshop format that enhanced the interaction between the two communities.