The Village Lab is a building that can sometimes be found in villages. It is commonly associated with the Geneticist Villager. The building is easily recognizable by the rim of black-stained clay along the roof, as well as Glowstone in the interior ceiling. The primary material in the walls varies by biome (oak in plains, spruce in taigas, sandstone in deserts, and acacia in savannas).
Inside, there's a randomized assortment of machines, a small pen containing a Mooshroom, and a double chest containing randomized fossils, amber and/or lab gear.