Obito's Laboratory

This laboratory is located within the Mountains' Graveyard. This was first seen when Tobi teleported himself and Danzō Shimura's corpse there in an attempt to retrieve Shisui Uchiha's eye.

There are many glass containers, each one holding a Sharingan eye, which are in suspended fluid on a massive wall with the Uchiha clan symbol on top. This is also where Tobi did his transplantation of Itachi Uchiha's eyes to Sasuke Uchiha.