In Assassin's Creed: Odyssey Fate of Atlantis, on Fields of Elysium you'll encounter Marble Maiden Tributes. These are marble statues of Persephone that are guarded by groups of warriors.
Marble Maiden Tributes are statues that are placed in various locations around the map. They are marked on your map. Moreover, the map contains information whether the chosen statue is destroyed or not.
Destroying a statue gives you one additional ability point and offers experience points for clearing the location and lowering Persephone's sway over Fields of Elysium.