So I never intended to create a world map since I am not a good Frontend Developer, but don't worry, here is the solution:
A map to display treasure chests, bosses, shrines, events, anemoculus, geoculus and challenges.
External Link: Interactive Map with markers (English UI)
Big shoutout to the developer "Snoopy/thezion"! :) He is on our Discord now and open for suggestions and feedback ;)
Note: As soon as Preciel will complete his development, his app will be linked here too.