Metropolitan cities are large urban areas that serve as economic, cultural, and political hubs. They typically have a high population density and offer a wide range of services, including education, healthcare, and entertainment. Examples of metropolitan cities include New York City, Tokyo, and London, which attract people from various regions for job opportunities and lifestyle. These cities often consist of multiple neighborhoods and suburbs, contributing to their diverse communities. Metropolitan areas are characterized by extensive infrastructure, such as public transportation systems, roads, and airports, which facilitate movement and connectivity. They play a crucial role in regional and national economies.