The 31st of October is celebrated as World Cities Day. The aim is to promote the international community’s interest in global urbanization, enhance cooperation among countries and cities in meeting opportunities and addressing challenges of urbanization, and contribute to sustainable urban development. The overall World Cities Day theme is Better City, Better Life. As an outcome of the Shanghai International Expo 2010, the United Nations General Assembly in its resolution 68/239 of 27 December 2013, designated every 31 October as World Cities Day. World Cities Day 2026 - People-Centred Smart Cities On 31 October 2026, the Global Observance of World Cities Day will be related to "Regenerating the City: Adequate Housing for All". The theme focus is on addressing urban regeneration as a catalyst for achieving adequate housing for all. It will showcase how combining area-based regeneration with housing and informal settlements strategies can deliver inclusive climate-resilient neighborhoods, consistent with the principles of adequate housing for all. It will also emphasize participatory, community-led regeneration, supported by safeguards that prevent displacement and ensure benefits for existing residents through improved housing. Today, up to 3.4 billion people lack access to adequate housing, secure tenure, basic services, or affordable living conditions. At the same time, cities are increasingly challenged by ageing neighborhoods, underutilized urban land, climate-related risks, and widening social inequalities. Urban regeneration presents a unique opportunity to address these interconnected challenges by improving existing urban areas while ensuring that no one is left behind. Under the theme "Regenerating the City: Adequate Housing for All," the 2026 observance of World Cities Day will explore how urban regeneration can serve as a transformative pathway towards inclusive, resilient, sustainable and people-centered urban development and housing solution. As cities across the world face growing challenges related to housing affordability, ageing infrastructure, climate change, social inequality and economic transition, urban regeneration is increasingly recognized as a strategic approach to revitalize existing urban areas while improving living conditions and expanding access to adequate housing. Source : UN