Structure

This page lists structures (also known as generated structures or structure features) in Minecraft. A structure is defined as what is disabled when the "Generate structures" world creation option is turned off. Features, such as monster room and desert wells, do still generate with this option turned off; however, they are listed on this page in due to them having the appearance of an artificial structure as opposed to a natural formation.
== Overworld ==
The Overworld contains numerous structures, at a wide variety of scales.
=== Underground structures ===
These structures can only generate underground in vanilla default Overworlds.
Structure	Biome(s) 	Description
 	
* 	Long corridors made of deepslate and wool, connecting to a central building with a portal like structure made of reinforced deepslate. The central structure resembles a warden. Small ruins can be found scattered around the ancient city containing loot chests inside.
 	Any Overworld biomes except	A maze of corridors supported by wooden beams, with incomplete rail systems on which minecarts with chests can generate. Cave spider spawners may generate here heavily surrounded by cobwebs. In Badlands biomes, they use dark oak planks instead of oak planks, and may generate close to the surface.
 	Any Overworld biomes 	Maze-like stone bricks structures containing many rooms, including one with a usually unactivated end portal frame. , they have a specific, fixed way of generating, and a maximum of 128 can generate in a single world.
 	
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* (Unused) 	A single hidden chest containing valuable loot that spawn in beach/shore biomes. They are easily found using treasure maps located in shipwrecks and occasionally ocean ruins.
 	
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* 	A group of ruined buildings meant to resemble small, ancient settlements. The entire structure is buried underground except for the tip of the tower, which is exposed to the surface. The structure can contain suspicious sand and suspicious gravel.
 	Any Overworld biomes 	A large structure with trial spawners, vaults and rooms that look like they are player-made with beds and chests.
=== Aboveground structures ===
These structures only generate aboveground.
Structure	Biome(s)	Description
 	
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* (Unused)	Large sandstone buildings containing four chests with loot in an underground room hidden beneath terracotta. The chests are trapped with TNT which detonate when a stone pressure plate in the center is stepped on, destroying the chests and their contents.
 	
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*	Snow buildings that may have a basement hidden under a carpet. The igloo itself contains nothing much of value, but the basement has a villager and a zombie villager held captive behind iron bars with a sign saying to cure the zombie villager. The splash potion of weakness on the brewing stand, together with the golden apple in the loot chest, can be used to cure the zombie villager, and turn it back into a regular villager.
 	
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* (Unused)	Overgrown cobblestone structures containing two loot chests, with one trapped with two dispensers firing arrows by redstone and the other hidden behind a lever puzzle. Setting the correct combination for the lever puzzle moves a block on the main floor, revealing a hidden cavity and the chest.
 	
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* (Unused)	An assortment of structures spawning pillagers. The main feature of interest is the watchtower: a tall structure built with wood and cobblestone that generates a loot chest on the top. Located around the watchtower are up to four small structures, including tents, target scarecrows, and wooden cages sometimes containing an iron golem or a couple of allays.
 	
* 	Also known as witch huts, these are small wooden buildings on log stilts containing a cauldron and crafting table. It spawns witches and, upon generation, one black cat. The cat and the first witch do not despawn naturally. You can use these witch huts to create a witch farm, as the witches will spawn automatically.
 	
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* (Unused)	A town full of houses and job sites inhabited by villagers with random professions and up to two iron golems defending the village. They are constructed with a wide variety of materials, depending on the biome that they generate in. Although village buildings do not have variants for jungle and swamp biomes, villagers wear different outfits when spawning in said biomes.
 	
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* (Unused)	Also known as a Zombie Village. A variant of the regular village, however its run down. Houses no longer have torches, everything is in ruin and all the villagers are zombified. No iron golems spawn either.
 	
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* (Unused)	Massive, systematically-generated buildings constructed with dark oak wood and a cobblestone foundation. They contain many rooms (some hidden) and loot chests in their three floors, and are inhabited by vindicators and evokers that do not naturally despawn. Allays can sometimes be found in prison cells.
=== Aboveground and underground structures ===
These structures generate both aboveground and underground.
Structure	Biome(s) 	Description
 	Any Overworld and Nether biomes except	
=== Underwater structures ===
Note that ocean ruins and shipwrecks sometimes generate above water on shores, and icebergs are partially above and below water.
Structure	Biome(s)	Description
 	
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* (Unused)	A collection of small structures made of stone bricks or sandstone. Drowned may spawn naturally here.
 	
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* (Unused)	Wooden structures resembling sunken ships in varying states of deterioration, containing up to three loot chests.
 	
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* (Unused)	Massive prismarine temples inhabited by guardians, as well as three elder guardians in fixed positions. Wet sponges, along with eight blocks of gold as treasure, also generate naturally here. The interior structure is randomly generated, resembling a maze of sorts.
== The Nether ==
The Nether, though equally vast, contains far fewer structures than the Overworld.
Structure	Biome(s) 	Description
 	Any Nether biomes 	Towering castles made of nether bricks that contain blaze monster spawners and nether wart farms. They are divided into open-air ramparts and winding interior corridors, some of which contain loot chests. wither skeletons and blazes exclusively spawn here.
 	
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* 	Enormous, castle-like blackstone structures housing piglins and piglin brutes. They can generate in various forms (bridges, housing units, hoglin stables, and treasure rooms) and chest loot vary from one form to the next.
 	
* 	Fossil variants that are more incomplete and purely composed of bone blocks. Note that it's a feature rather than a structure feature.
 	Any Overworld and Nether biomes	
== The End ==
The End is the final and most barren dimension, with no structures on its main island. After defeating the ender dragon, gateways to the outer islands are created.
Structure	Biome(s)	Description
 	
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* The End	Sprawling, well-connected towers built from purpur, end stone bricks and Purple Stained Glass. They are inhabited by shulkers that guard valuable loot chests, and the largest, most meandering cities may generate an end ship holding a pair of elytra.
== Structure-like features ==
These worldgen features have similarities to structures but they are not true structures. Instead, they are coded and generated the same way as trees or ores. This is why they generate even when the "Generate structures" world option is disabled, and also cannot be located with the command.
Features	Biome(s) 	Description
 	All Overworld Biomes 	A small cobblestone room containing a spawner, which spawns zombies, skeletons, or spiders, as well as up to two loot chests. They are typically connected to underground caves but may generate above ground or intersected with true structures such as Mineshafts or Strongholds.
 	
* 	Small sandstone feature holding water in their center cavity. They do not generate gold or treasure as part of their generation but the water can be used as an infinite water source.
 	Anywhere, near the spawnpoint.	A chest with additional loot, that spawns near the player's spawnpoint if the feature was toggled on when creating the world.
 	
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* 	A pile of blocks that can only generate in villages. There are 5 variants of pile: Hay, Ice, Melon, Pumpkin and Snow.
 	
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* 	Small mossy cobblestone boulders randomly found throughout Old Growth Taiga, often partially buried.
 	All Overworld Biomes 	Large, hollow spherical rocks composed of outer layers of smooth basalt and calcite with an inner layer of amethyst blocks. This is the only place where budding amethyst and amethyst blocks can be found. They come in many sizes, including open geodes and entirely encased geodes.
 	
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* 	Usually buried feature made of bone blocks and some coal ore.
 	
* Ice Spikes 	Tall spires made of packed ice, which can only be found on the Ice Spikes biome.
 	
* (all variants) 	A feature varying in size, consisting of packed ice and snow blocks, with blue ice on the bottom. Note, not all iceberg-looking terrain in Frozen Ocean Biome are created by feature but as part of the biome itself through Surface Builders.
 	
* The End 	A feature, which has the look of a fountain. It becomes a portal and a Dragon Egg spawns on it after the player beats The Ender Dragon.
 	
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* The End 	A 1-block portal, which activates after the Ender Dragon is defeated. Using a Pearl, the player can teleport on the the outer regions of The End.
 	
* The End 	Tall obsidian pillars that hold the Ender Crystals. Some of them also have iron bars.
 	
* The End 	Obsidian platform on which the player spawns when they enter The End.
 	
* The Void 	A platform made of stone with a cobblestone block in the center. They can only spawn on Superflat worlds with The Void preset selected. Only available in Java Edition.
==Removed structures==
These are structures that have been removed or exist only in older versions of Minecraft.
Structure	Biome(s) 	Description
 	Anywhere, since biomes didn't exist back then. 	A giant pyramid that had no interior and was made solely out of bricks. The official name for this structure is unknown. Was removed in Java Edition Infdev 20100327.
 	Any Overworld biome. 	It's a tall, one-by-one glass pillar which stretched from the end portal room in the stronghold all the way to the build limit. According to Jeb, it was a debug feature that he forgot to remove. It was removed in the version Java Edition Beta 1.9 Prerelease 4.
 	Anywhere on the Java Edition Indev world. 	It used to serve as the spawn location for the player during the Indev phase. The first edition of this house was made of mossy cobblestone, but later it was changed to wooden planks. It also included two chests with various items, which was later removed.
 	Anywhere during Infdev. 	These were chunk-sized patches of terrain that would generate up to the height limit. They were never intended to be in the game as they were just a glitch. Monoliths were patched in the version Alpha v1.2.0 Preview.
 	Anywhere, as it's built by the player. 	It's a player-built structure that would turn into the Nether Spire, and would give the player access to unobtainable items. The reason for it's addition is because The Nether didn't exist in Pocket Edition back then. Was removed after the addition of The Nether.
 	Anywhere where the Nether Reactor was built. 	It was a tall and round structure that spawned over the Nether Reactor. It was made out of obsidian, which was later changed to netherrack. It would spawn various Zombie Pigmen and items from The Nether. It's purpose was to enable the players on Pocket Edition to obtain certain items, since The Nether wasn't implemented yet.
 	Anywhere, since it stretched towards every direction.	It was a 2 block tall obsidian wall which was only present during some versions of the Infdev phase. It started in the middle of the world, and stretched towards North, South, West and East. This structure doesn't have an official name.
== Technical details ==
Structures are generated for a given chunk after the terrain has been formed. The chunk format includes a tag called that indicates whether structures whose point of origin is in that chunk have been generated. If it is false or missing, it generates again. Structure generation is based on what is already in the chunk, so (for example) flagging a chunk that has already been populated for repopulation approximately doubles the amount of ore in it. When structures are generated, they can spill over into neighboring chunks that have been previously generated.
== Data values ==
===ID===
The following table lists configured structure features' IDs and structure features' IDs . These IDs can be used in command.
Structure name	Java Edition	Bedrock Edition	Dimension
 	 	 	Overworld
 	 	 	The Nether
 	 	 	Overworld
 	 	 	The End
 	 	 	The Nether
 	 	 	Overworld
 	 	 	Overworld
 	 	 	Overworld
 	 	Not a Structure	The Nether
 	 	 	Overworld
 	 	 	Overworld
 	 	 	Overworld, The Nether
 	 	 	Overworld
 	 	 	Overworld
 	 	rowspan="4" 	
 	 	 	
 	 	 	
 	 	 	
 	 	 	Overworld
 	 	 	Overworld
===Tags===
, there are some structure tags in vanilla game.
Tag 	Structure(s)
#cats_spawn_as_black#cats_spawn_in	
#dolphin_located 	
#eye_of_ender_located 	
#mineshaft 	
#ocean_ruin 	
#on_ocean_explorer_maps 	
#on_treasure_maps 	
#on_woodland_explorer_maps 	
#ruined_portal 	
#shipwreck 	
#village 	
== Achievements ==
== Advancements ==
== History ==
==See also== 
*Biome
*Generated structures data file format
*Jigsaw Block
*Structure Block
*Air
 
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