Hey all,
i recently discovered that theejs also has a forum, so I thought I say hello and show you what I made with this amazing library! 
I wanted a map of my Minecraft world … in 3d 
So I started this project some time ago and after some failed attempts, I actually got somewhere decent:
Demo: https://bluecolored.de/bluemap (Works best with Chrome, and make sure to zoom in ^^)
GitHub: BlueMap · GitHub
Here is a Screenshot:
The models of the world-chunks are being generated by a java-program and exported as a buffer-geometry json file. The generated files are huge but can be deflated using gzip with a compression rate of about 20%, wich helps a lot. Also, modern browsers can inflate those files on the fly if you send them correctly!
It is far from done, yet.
In the future i plan on maybe look into shader-writing and export the baked lighting and ambient-occlusion data separately. So i can mix them together using the shader, to be able to e.g switch between day and light… That should be possible, right? ^^
Please, tell me your thoughts, ideas and suggestions!