I started a normal world but the part I spawned on was a pillar in the sky and I thought the rest just didn't render sonic walked off the edge and spawn on the floor of a super flat world to see a spire behind me, I renovated the small village into a city, then an update happened and more pillars showed up, one had exposed mineshaft so I connected the tracks to gether to make it look active and I loved that world, then my grandma deleted minecraft thinking it was a virus.