This book explores how digital technologies are reshaping urban public spaces, transforming social interactions, civic engagement, and cultural experiences in cities globally. Through detailed case studies from Singapore, Barcelona, Tokyo, Amsterdam, Istanbul, New York City, Boston, Seattle, Vancouver, Montreal, Medellín, Bogotá, Canberra, and Cape Town, it examines innovative digital solutions such as smart waste management systems and citizen engagement platforms, assessing their profound impact on urban safety, mobility, and accessibility. The book critically questions whether public spaces are effectively aligning with rapid technological advancements to better serve citizens, delving deeply into the evolving role of these spaces. It highlights how tools like Internet of Things (IoT) and digital platforms can significantly enhance urban life while addressing critical challenges such as privacy concerns and unequal access. The book also investigates how digitalization fundamentally reshapes urban morphology, from physical infrastructure to intangible cultural dimensions, offering a comprehensive framework for future city planning and sustainable development. Ideal for urban planners, architects, policymakers, and those passionate about the future of cities, this book provides a concise, insightful guide to navigating the dynamic intersection of urban design and technology in the 21st century.