Texas Pit
The original owner apparently liked to keep track of who came to visit his cave, and so had states listed across the walls in this chamber and asked his guests to put their business cards on the walls of the state that they were from. Apparently he didn't like Texas and told Texans to go ahead and throw their cards into Texas pit, which is on the right. The picture of the pit itself didn't turn out, so this will have to suffice.