Minecraft's world is made up of chunks, which are 16 x 16 blocks large on the X and Z axis, and 384 blocks on the Y axis. When you first load into a world, a set number of chunks load around you, ...
In real life, we measure distances using units like "miles" or "kilometers." But in Minecraft, the world is made up of "chunks," spaces that are 16x16 blocks wide but massively tall. There are a few ...