There are two Map modes in the game - the Imperial Map and the Beacon Map.
The Imperial Map displays Castles, Battlegrounds, Hamlets, and other sites on the map. To view the Imperial Map, tap the magnifying glass icon in the bottom left corner of the main game screen.
The Beacon Map displays Leagues according to their political influence; moreover, it displays Beacons and League Fortresses. To view the Beacon Map, tap the red icon depicting a Beacon in the bottom left corner of the map screen.
Captured Beacons will appear on the Map with the logo of the occupying League.