Obito's laboratory is located within the Mountains' Graveyard headquarters of the Akatsuki. It was first seen when Obito teleported himself, and Danzō Shimura's corpse there in an attempt to retrieve Shisui Uchiha's eye only to discover that the elder had crushed it before his death — an action which Obito cursed him for. This was also where Obito transplanted Itachi Uchiha's eyes into Sasuke.
A massive wall decorated with the Uchiha clan symbol on top of it, stores a large collection of eyes, which are each individually suspended in fluid inside built-in labelled glass containers. The laboratory is also equipped with an operating table for surgical use.