Climate change largely impacts urban life. Extreme temperatures have an impact on sea level rise and, subsequently, nefarious events such as floods, droughts and storms have costly impacts on cities' basic services, infrastructure, housing, livelihoods and health. Cities are responsible for 75% of CO2 emissions, and so its stakeholders must come forward with out of the box solutions to promote innovation and stimulate urban resilience by limiting negative impacts of climate change. But for a problem to be addressed, it must first be seen and felt. Visualization is a potential way of increasing engagement with climate change, and IT developments, such as Artificial Intelligence and Augmented Reality, provide significant advancements that can be transformative in engaging audiences with climate change issues. This is at the basis of Augmentcity which developed a ground-breaking way to operate digital twins of cities, enabling data and “what-if” scenarios to be analysed and visualised in an interactive and immersive visualisation tool to be used by policy-makers, researchers, companies and citizens. Our proposal builds on AugmentCity and apply it in terms of demonstration, co-creation and mobilization of stakeholders for capacity-building and collective decision-making in 3 European urban areas for resilient urban infrastructure adaptation to climate change.