Finding ways to make the future more sustainable is now a global necessity that is hard to talk about since cities are growing, technology is getting better, and environmental problems are getting worse. This book does a great job of explaining how new ideas and digital developments could help cities, buildings, and infrastructure live longer. This book brings together work from researchers and practitioners from all across the world to look at new breakthroughs in smart cities, digital governance, circular construction technologies, and sophisticated engineering analysis. The chapters talk about how new technologies like AI, digital twins, data-driven modeling, and advanced simulation are changing how we plan, build, and run systems that are good for the environment. They do this by using case studies, analytical models, and research that is really used in real life. The book makes it obvious that we need more than simply technology to get results that last. We also need responsible individuals, competent administration, and good schools. The book uses ideas from social, behavioral, and institutional studies along with new technologies and digital tools to create a complete picture of the difficulties we face with sustainability and how to solve them. This book is for persons who work in research, policy, or academia, or who know a lot about their profession. You may look it up and get wonderful ideas from it. It talks about climate resilience, resource efficiency, and sustainable development all across the world. It is quite similar to the UN's Sustainable Development Goals. This book is very helpful for anyone who wants to link innovation and sustainability in the digital age.