Seireite is a circular shiro where members of the noble families and Shinigamis reside. It acts as the Capital of soul society and the major stronghold of the shinigami race.
Though massive in size Seireite only has four main entrances, which are ten days walk apart. These gates are collectively called the Four Great Pure Soul Gates (四大瀞霊門, Shidai Seireimon): these gates are made up of the Northern Black Ridge Gate (黒隆門, Kokuryōmon), the Eastern Blue Stream Gate (青流門, Shōryūmon), the Southern Red Hollow Gate (朱洼門, Shuwaimon), and the Western White Way Gate (白道門, Hakutōmon).
At the center of Seireitei is a white tower known as the Senzaikyū, where criminals are imprisoned; on the hill adjacent to it is the Sōkyoku Hill where executions take place using the Sōkyoku (双殛, Twinned Punishment)