There are three strongholds per minecraft world, and the eye of ender heads towards the nearest stronghold when used.

Players don't have to build or dig a whole base because the map generator has already done the work for them. The most basic method of locating the stronghold is to throw an eye of ender, which will fly for a few blocks in the direction of the nearest stronghold before either dropping to the ground or (20% chance) shattering. It is extremely rare, but possible, for a dungeon to be just outside the portal room, thus cutting off the rest of the stronghold or not spawning it. Reduced chance of strongholds generating under villages. However, assuming they already have explored it thoroughly, there are likely already a lot of torches around. Silverfish bricks are destroyed in 3 seconds, even when players are using their hands. A stronghold and an abandoned mineshaft intersection. Strongholds may generate at bedrock level, cutting the bedrock. Stairs that generate within these structures include stone brick stairs, but not mossy stairs. They can also sometimes be exposed underwater if they generate in terrain that is close to an. Strongholds are located in a ring between 640 and 1152 blocks away from X = 0 and Z = 0. Strongholds primarily generate underground and prefer to generate in biomes above sea level but generate underwater if necessary. Strongholds feature various types of main rooms. Up to 128 strongholds spawn per map on the PC edition, as of The Combat Update (only three spawn in the Xbox and PS3 editions). When generated after 1.0.0, Strongholds also contain a portal room with an inactive End Portal, which when activated with 12 Eyes of Enders, can be used to travel to The End. As of April 2018, only one seed has been found to have this occurrence. A floating torch in a pillar room, from a rendering glitch. Most strongholds have a monster spawners (for silverfish), an abundance of stone bricks, torches, chests with randomized loot, Stone slabs, and blocks found mainly underground such as cobblestone.A hazard worthy of note that is found inside strongholds is the silverfish. The fourth ring has 15 strongholds within 10,624–11,904 blocks of the origin. Several eyes of ender will most likely be needed in order to locate a stronghold. First appearance An underground view of the top of a stronghold. Beta 1.8 When the stronghold is nearby, the thrown eyes will fall in the same place repeatedly. If playing in SMP, the last advantage also counts for other players armed with eyes of ender. If a stronghold is found at the diamond level, there is a possibility that it will cut through. An easy way to differentiate between normal bricks and silverfish bricks is to see how fast it mines with the player's hand. The center of the room may have various decorations. Ender pearls now generate in altar chest.

Stone Bricks and variants, Silverfish Block, Lava, Iron Bars, cobblestone stairs