Maps are flat representations of the Earth's surface, which is a sphere. They are used to show locations, distances, features, and more. There are many different types of maps, each designed for a specific purpose:

* World Maps: Show the entire Earth.

* Regional Maps: Focus on a specific area, like a continent or country.

* City Maps: Detail a city's streets, landmarks, and infrastructure.

* Topographical Maps: Show elevation changes, mountains, valleys, etc.

* Thematic Maps: Highlight a specific theme, like population density or climate zones.

While maps are two-dimensional, they are still useful for navigating, understanding geographical relationships, and visualizing spatial data.

Let me know if you'd like to learn more about specific types of maps or their uses.