Naka Shrine

The is a shrine that the Uchiha clan originated from. It's located in Konohagakure's Uchiha District, and is the home to the clan's patron deity. In the main hall, beneath the seventh tatami mat from the far right, is a secret meeting place of the Uchiha clan. There stood a stone monument which contains the clan's secrets and can only be read with specific dōjutsu.

The upper level of the shrine was destroyed during Pain's assault on Konoha, though the secrets hidden below remained untouched and was later accessed by Taka and Orochimaru during the Fourth Shinobi World War. In order to access the main hall, Sasuke Uchiha had to use a sequence of seals to remove the sealing stone that lays atop the entrance way. The seal itself has the Sharingan in the middle.

Trivia

 * This location appeared in Naruto: The Broken Bond, which also provided an achievement for Xbox 360 and called "Path of Darkness". The Naka shrine was regarded in the game as Sasuke's Hide Away or Sasuke's Secret Room; it is, however, unknown if at the time the producers of the game knew what this shrine was since it was only shown to be a location that Sasuke was seen while grieving because of the Uchiha Clan Downfall and the thoughts of revenge against Itachi Uchiha. This site can be found in Konoha in-game, but it is underneath the island in the south-west area of the village instead of under the main hall in the manga.
 * This location was also used as an unlockable stage in Naruto: Gekitō Ninja Taisen! 4.