Map of the Underworld, a new area added in The Fate of Atlantis: Torment of Hades DLC for Assassin's Creed Odyssey. Regions: Path to the Underworld, The Scorched Lands, Chasm of Torment, and Mourning Fields. Locations for The Fallen, Perception of Hermes, Ainigmata Ostraka Riddles, Tartaros Rifts, etc.
The dark abyss of the underworld is the gathering place of the dead - a caucas of the souls that once were. Separated into parts that group the dead by the evil of their earthly deeds, no one here can escape the suffering far below the golden glow of Mount Olympos.

Perception of Hermes x3, Quest Givers x3, Tombs x2, The Fallen x11, Ainigmata Ostraka (Riddle) x5, Ainigmata Ostraka (Solution) x5, Fortresses x2, Ruins x4, Military Camp x1, Temples x2, Caves x7, Dwellings x5, Sanctuaries x5, Viewpoints x8, Other x2
The following legend of Underworld interactive game map defines the points of interest / markers displayed on the map. Each marker corresponds to a specific element to facilitate efficient navigation and interaction with the map.
Here you can find Keeper's Insights. You need all of them to complete The Next Lesson quest. Each Keeper's Insight unlocks special Ability Enhancements, which are powerful new versions of existing abilities.
Viewpoints can be synchronized by climbing them and pressing the interaction button. They can then be used as fast travel points.