Nether Fortress



Nether Ruins, first introduced in the 1.9 Pre-Release, are structures that are generated in the Nether. They include bridge structures constructed of Nether Bricks, Nether Brick Fences, and Nether Brick Stairs. They often contain Blaze Mob Spawners, and are the only place that Nether Warts can be naturally found. The spawn rate for Magma Cubes may be increased inside the ruins, but this is currently unclear.

Structure
Nether ruins are very large complexes made mainly of Nether Bricks. Their main structure takes a shape of bridges with supporting pillars outside and corridors inside. Inside structures have 1x3 windows with Nether Brick Fences. The rooms include:
 * Lava well rooms
 * Rooms with Nether Brick Stairs in the center and Soul Sand at sides of stairs of them containing Nether Wart growing on soul sand.
 * Rooms with blaze monster spawners. Netherrack stairs will lead into them.