This article explores the integration of IoT devices in monitoring and managing critical urban infrastructure, focusing on traffic management, waste management, and energy use. We examine how sensor networks, data analytics, and interconnected devices can optimize resource allocation, improve service delivery, and enhance citizen quality of life. Challenges and considerations regarding data privacy, security, and infrastructure investment are also addressed. By harnessing the power of IoT, cities can pave the way for a more sustainable, efficient, and livable future, Rapid urbanization poses significant challenges in managing resources, infrastructure, and citizen well-being. The Internet of Things (IoT) emerges as a transformative technology, enabling the creation of smart cities.