Minecraft wiki entry for Building_a_metropolis, associated text: Zoo Try to get one of each mob in a chamber where players can look at them. You can make mini-biomes resembling a mob's home. Be careful with the hostile mobs as they might despawn or escape and harm players. Also, remember that spiders can climb walls. Optionally, you can only put passive mobs on display, or put name tags on the hostile mobs. You can have enrichment to show off the mob’s natural behavior, such as areas for dolphins to jump between bodies of water, prey animals for foxes to pounce on, or flowers for bees to pollinate.