The Elder Scrolls Online Map Legend
Wayshrines - if visited allow you to teleport to this location. Fast Travel between wayshrines is free, although fast traveling to a wayshrine from anywhere will cost gold.
Locales - Area of Interest, visit every locale on map for achievement.
Group Locales - Group Area of Interest, areas designed to explore in a group with other players.
Skyshards (ground level) - Skyshard on the ground level or above. Every three skyshards a player collects will yield one skill point.
Skyshards (inside dungeon) - Skyshard in dungeon. Every three skyshards a player collects will yield one skill point.
World Bosses - powerful elite encounter(s), to defeat him you will need the help of other players.
Delve - caves, delves, dungeons, instance or dungeon intended for solo or cooperative play.
Group Dungeon - group dungeons, raid dungeons, group instances intended for groups of players.
Dark Anchors - spawn points of Molag Bal forces, every few minutes you'll find a group activity here.
Mundus Stones - visiting will grant you a permanent blessing, but only one blessing at a time.
Guild Trader - Shops contain Guild Traders offering wares from various players guilds.
Crafting Site - Special crafting stations where you can create specific item sets.
Lore Books - collect Lore for skills upgrade and for Mage Guild experience.
Ancestral Tomb - for The Ancestral Tombs Quest visit them all to reveal location of lost Library of Andule (Morrowind).
Strider Caravaner Tower - Use them for quick travel for free in Vvardenfell (Morrowind).
Inn - Player Housing
Apartment - Player Housing
Small House - Player Housing
Medium House - Player Housing
Large House - Player Housing
Manor - Player Housing, biggest