The map inside a dungeon. Quest log automatically switches to all the quests inside the dungeon. Boss icons on the correct locations including loot tables on hover/click.
On the world map and zone maps you will find the dungeon entrances marked with a swirl you can click.
The minimap icon will show you a list of all the dungeons categorized per level and show the 'recommended' dungeons on top. You can disable this feature in the options! Clicking will go to said dungeon's map.
Quest log for dungeons show clickable chain quests that mark which quest you're on right now and what follow up steps there are.
When you click on a quest it shows you the same window as in the regular quest log and will have a button "Show on map" to see where to pick up this quest.
Quest log will point you to the quest giver on the world map with an enlarged !-icon.