Through 90 Challenges published via Citymart, cities have discovered more than 10,000 new solutions, effectively eliminated re-inventions and scaled proven urban and social innovations in real-life urban contexts worldwide.

To date, 52 cities worldwide - including London, Paris, Barcelona, San Francisco, Boston, Santiago de Chile, Mexico City, Fukuoka and Cape Town - co-create, adopt and share the method.

Cities sharing solutions through partnerships with Citymart 2011-14

Left hand: Cities publishing needs // Right hand: Origin of solution sourced