This chapter explores the transformative impact of integrating Helium Blockchain and LoRaWAN in urban innovation, focusing on AI-driven solutions in environmental monitoring, smart parking, crowd management, and urban gardening. Helium Blockchain, with its decentralized network and Proof-of-Coverage mechanism, ensures secure, scalable infrastructure for IoT devices. LoRaWAN complements this by offering low-power, long-range communication capabilities. Through detailed case studies, we demonstrate how these technologies enhance urban management, sustainability, and citizen engagement, showcasing practical implementations and their outcomes in real-world scenarios.