Hmm, there's a little visual bug I found with my friend when we were trying to see what's new on this shapshot... see
Looks like a building is built on a lava lake.
Somehow, The water goes through the wall.
Is this the last update (18w10b)?
My videos: https://www.youtube.com/user/robingravel
My cartoons: http://www.dailymotion.com/robin-gravel
Flash Animation (if your computer can still play flash games/movies):
Few flash movies have easter egg/extras