Uchiha Hideout

The was a former base of the Uchiha clan, which ceased being used after the Uchiha clan massacre. It was set atop a mountain that was in turn surrounded by vast forestry. The only room that is seen appears to be a sort of throne room that has numerous indentations in its walls. Behind the throne is a poster that depicts the kanji surrounded by eight swirls.

The fortress became the site of the final battle between Sasuke Uchiha and Itachi Uchiha eight years after the massacre. It suffered massive damage from the various fireballs launched by the two brothers, and the entire building was eventually blown apart by Sasuke's Kirin. The forest around the area was also set ablaze by Itachi's Amaterasu.

Trivia

 * The drawing in the throne room is almost visually identical to the opening page of Naruto Chapter 1, minus the depiction of Minato Namikaze riding atop Gamabunta and Kurama.