This is a map of Turkey divided by its regions, built with the Interactive World Maps premium plugin. In this example there is no action associated with the regions, but you can set the regions to be interactive, add links to them, make them open content with lightbox or display information below the map, after a user clicks a region. It’s very easy to set a map like this, you just need to use the ISO-3166-2:TR codes.
Check the screenshot below of the administration area for the map.
(Click the image to enlarge).
You can also set markers in locations instead of coloring regions. The plugin is very flexible.