READ THE DESCRIPTION OTHERWISE YOU WON'T KNOW WHAT TO DO
Ok, so this map is about fighting a wither.. on a huge tower thats 256 blocks tall..
When you first enter the world, you might see random spheres of sponges or whatever. Check those out if you want..
But you need to teleport to these coordinates:
x: -99
y: 4
z: 149
Once you are done, open the chest, put on the armor and weapons, step on the pressure plate, then step on whatever pressure plate you find there. Then you should fight the wither.. If the wither ever goes under the tower just teleport to the coordinates I mentioned above.. don't hate please.
P.S You need to unzip the folder once you download it.