Map is represented with the 
icon.
To display a Map, you need:
- At least one geographical role in a Mark property (Detail, Color, or Label)
- The Longitude (generated) field in columns
- The Latitude (generated) field in rows
A Map is great to have a Geographical point of view. However, the biggest disadvantage of a Map is that the small territories are difficult to see. In the United States map, District of Columbia is too small to be visible on a Map.
When you display a Map, there are options to search, zoom, and select values in the menu in the top-left of the Map. The following screenshot helps find those options:
Here's an example of a Map in Tableau:
You can use the Map menu on top to customize your map: change the layers, the options, and legend.
The next Mark type is not very popular among data visualization people, but it's essential that you know why and when to use it. Let's talk about Pie.