Just as you don’t have to creat a memory palace from zero, rather use a known place and mix it with your imagination you could as well use maps for your worlds design, obviously you don’t need to use these kind of world to build memory worlds, however these are very fun and could become more than just a memory world, quite easily become a world for a novel or two.
These are some resources I found by accident, consider using these when thinking building memory worlds:
Real World Map Memorization
""
https://snazzymaps.com/
Map Viewer
ArcGIS Web Application
Google Maps
Google Earth
Planets
Continental or Regional Maps:
""
Azgaar's Fantasy Map Generator
Mapgen4
Mapgen2
https://mewo2.com/notes/terrain/
https://mapchart.net/
Cities:
""
Medieval Fantasy City Generator by watabou
Village Generator by watabou
City Generator
https://metromapmaker.com/
Random City Map Generator – Inkwell Ideas
(I don’t like this one below)
https://www.worldanvil.com/
Dungeons
""
Good ideas for memory palaces but can as well be used to create memory worlds: Initial location > City > Achitectural > Loci
Random Dungeon Generator
donjon; d20 Random Dungeon Generator
https://davesmapper.com/
Gozzys.com TTRPG Resources – Legacy Cave Map Generator
Gozzys.com TTRPG Resources – Legacy Dungeon Map Generator
https://dungeonscrawl.com/
