U.S. cities are urban areas that serve as centers for culture, economy, and governance. Each city has its own unique characteristics, such as New York City known for its iconic skyline and diverse population, or Los Angeles famous for its entertainment industry and beaches. Cities often feature a mix of residential, commercial, and recreational spaces. Many U.S. cities are also hubs for education and innovation, hosting major universities and tech companies. Cities like San Francisco are recognized for their contributions to technology, while others, like Chicago, are known for their rich history and architecture. Each city plays a vital role in the country's overall identity.