Blaze Spawner - common
Creeper Spawner - common
Enderman Spawner - common
Skeleton Spawner - common
Spider Spawner - common
Zombie Spawner - common
Little Tree House - common
The Graveyard - uncommon
Mushroom House - uncommon
Ice Castle - uncommon
Ghast's Skull - uncommon + generates only in the Nether!
Wooden Tower - rare
Tree House - rare
Old Library - rare
Redstone Temple - rare+ generates only in the Nether!
Easter Island Head - rare
Dragon's Skeleton - rare
Ender Temple - very rare
Mexican Pyramid - very rare
Ziggurat - very rare
Hell Library - very rare + generates only in the Nether!
Lost Miner's House - very rare + generates only in the Nether!
Nether Crystal Temple - the rarest! + generates only in the Nether!
