Countless urban initiatives worldwide deserve more attention than they currently receive. This platform seeks to accelerate their impact. Closer Cities is a scientific research project. By analysing urban projects, we gain a better understanding of how to make optimal use of urban knowledge all around the world. We give this knowledge back to you - urban actors, case submitters, fellow researchers and more - through online events. Advancing urban knowledge transfer increases the impact of urban initiatives and promotes the Sustainable Development Goals. Become part of this movement!