Nether hub

The nether hub is a 100x100 obisidian platform up to the bedrock top of nether, centralized at 0 0.

It's well known for being the place to spawn killers, it's holes that lead to lava, the bottom of bedrock, or cpvp'ers (certain dearth), and for being a complete obisidian labyrinth.

The 4 main highways (supposedly) start at the nether hub, and some of the diagonal ones.