I cannot remember the IP for the life of me, but I remember a lot about it. It was a unique type of box server. The entire play area was a bedrock box, covered from top to bottom. It was not very big in the spawn area, because the box was split into many different rooms and hallways. The rooms were usually comprised of a resource cube or two. One of the hallways had a parkour section because the next room had the enchanting table(?) iirc. There were cubes of oak logs, stone, coal, iron, cobwebs, slime blocks, etc. I remember that the room with the slime blocks was really big. It may have had a pyramid ceiling? Last thing, I think the IP was really short (AND EASY TO REMEMBER).