The Heart of the Island as seen in the series finale of "LOST"
About this creation
First of all I have to say again how perfect i thought the end of this phenomanel show was! This is the cavern below the source where Desmond is forced to go and pull the ancient plug which causes the island to start to sink! It also causes the Man in Black to become vulnerable to attacks. After finaly defeating the Man in Black, Jack returns to the source and puts the plug back in, saving the island from destruction.