A city map is a representation of a city or town, typically including streets, buildings, and other features. An INSET is a small map or diagram inserted into a larger one, usually to provide more detail. A PLAT is a map of a city, town, or subdivision showing lots, streets, and other features. An avenue is a wide street, usually lined with trees. Together, these three terms can be used to describe a city map, which is a detailed representation of a city or town.