These screenshots are from the Horizons online game.
The first screen shows the initial view of the map, showing just the towns.
You can control what is shown using the Show menu:
Next, we click the Nearby tab to see what is near the town of Dalimond:
And next we click the Detailed tab to zoom in even more:
and finally the Town tab to zoom in on the details of the town:
To add a new location, go to the Edit tab:
and click the Publish button to send it to the master database.