Between 2014 and 2022 IGLUS was offering a unique global action-learning journey which has never been copied since. We brought together all the relevant stakeholders to urban infrastructure governance during two-week intensive action-learning modules, covering lectures by local academics and practitioners as well as field visits. Modules took place approximately every other month in a major metropolitan areas in Europe (Lyon, Dortmund, Moscow, St. Petersburg), the Americas (Mexico City, Chicago, New York, Detroit), Africa (Kampala, Nairobi), the Middle East (Istanbul, Dubai) and Asia (Kuala Lumpur, Singapore, Seoul, Delhi, Hong Kong). Modules covered selected infrastructures (e.g., transport, energy, green, blue and brown infrastructures) as well as selected transversal topics (e.g., governance, financing, private sector participation, digitalization). In each of the metropolitan areas we were partnering each time with a local University and sometimes with local authorities. After completing five such 2-week action-learning modules and writing a 60-page Master thesis, the successful participants were awarded an Executive Master degree from Ecole Polytechnique Fédérale Lausanne (EPFL), Switzerland.