For Milliondollar:
Here is some Information.
Graveyard:
Spawns in at Forest Biomes, Jungle, and Forest-Taiga.
Loot:
Jukebox: Music Disc: Ward
Chests:
Common: Wooden Axe, Broken, Wooden Sword, Broken.
Uncommon: Steak, Stone Sword, Full, Iron Ingots, and Redstone
Rare: Gold Ingots, Obsidian
Very-Rare: Diamonds, Iron Blocks, Coal Blocks
Extremely-Rare: Emeralds, Nether Stars, Diamond Blocks, Gold Blocks.
Monster Spawners: Skeleton, Zombie, Blaze.