Emerging technologies such as blockchain, artificial intelligence (AI), digital twins, and advanced internet of things (IoT) sensors are transforming cities into intelligent, interconnected ecosystems through applications such as smart parking, smart healthcare, and smart education. These systems rely on IoT devices and gateways to collect, process, and analyze data for optimizing smart city functions, with advancements shifting from 5G to 6G technology. While these innovations promise to revolutionize urban environments, ensuring security and privacy in 6G infrastructure remains a critical challenge for realizing the full potential of smart cities. Building Tomorrow's Smart Cities With 6G Infrastructure Technology explores the profound impact of emerging technology-enabled secure 6G infrastructure on the creation of futuristic smart cities. It provides relevant theoretical frameworks and the latest empirical research findings. Covering topics such as AI, heritage cities, and web3, this book is an excellent resource for industry professionals, researchers, policymakers, academicians, students, and more.