Metropolitan municipalities are large urban areas that encompass a city and its surrounding suburbs and towns. They are designed to manage local governance and services more effectively across a broader region, addressing issues like transportation, housing, and public safety. These municipalities often have a significant population and economic influence within their respective regions. In many countries, metropolitan municipalities are responsible for coordinating services such as waste management, public transit, and land use planning. They aim to promote sustainable development and improve the quality of life for residents. Examples of such municipalities include Los Angeles County in the United States and Greater London in the United Kingdom.