This building serves as the main administration building for Hidden Sand. It bears the "Kaze" kanji meaning wind. The Kazekage and his advisors have offices and conference rooms here. The building also contains statutes of the previous Kazekages.
This is the Board for all Sunagakure shinobi to come and request missions such as D, C, B, A, and S. The Kage will make sure that your request is tooken to as fast as he can but if he is in another village, then he cannot give you a mission. Kages are able to leave missions up on the board if they choose too.