Tombs of the Erased: Procedurally generated side zones found inside Echoes. Completing them usually grants a duplicate Echo reward, and is the primary source for collecting Memory Amber to use within the Woven Faction.

Cemeteries of the Erased: Procedurally generated side zones similar to Tombs that can be found in the Monolith of Fate. Once a Cemetery is completed, you can interact with the Altar to the Weaver to place Woven Echoes on to your Timeline's Echo Web.