The Zanpakutou of a Shinigami can only cleanse spirits of the sins they committed as Hollows. If the spirit committed heinous crimes as a Human, it will not be sent to Soul Society, but through the Gates of Hell.
The First Level of Hell features a multitude of white blocks floating in mid-air among a series of blue pathways. It is on this level that many of the dejected Togabito reside, having given up on resistance. Renji Abarai commented that the First Level of Hell has reiatsu so strangled that people with normal reiatsu would go insane. This level is where the majority of Kushanada patrol frequently, in order to prey upon the weaker Togabito. At the edge of the blue pathway is a gaping abyss, through which the next level can be accessed.
The Second Level of Hell is mostly composed of a large body of water. Within this large expanse of water, are a multitude of stone water lilies, in the center of which lies a pierced skeleton of a Kushanada. It is on this level that Ichigo Kurosaki and his friends initially battle with the Togabito in Hell. The body of water can also be navigated through, and ultimately leads to the third level.
The Third Level of Hell is a rocky, barren landscape with various craters in which yellow lava forms. After the rocky landscape is cleared, there is a narrow passageway lit with the dim lighting from various shrines.
The Fourth Level of Hell starts off with a hilly area in which there are a multitude of small domes jutting out of the ground. From the opening in the face of a cliff, a thundering waterfall with the yellow lava rains down around it. The sand which emits trace amounts of reiatsu is comprised of the crushed bones of millions of Togabito, who turned to ash due to the hopelessness of their predicament. This section then crosses over into a giant skeleton resembling the ones which make up the Gates of Hell. This overlooks a pit of lava, which has the ability to resurrect killed Togabito. Around the skeletal structure, is a series of pillars and a set of stone fingers.
The Lowermost Level of Hell is composed of a black landscape, with many irregular columns covered in veins of lava jutting out from the ground. The Kushanada are capable of materializing from within these lava columns. This level was where Kokutou was imprisoned in Hell, and also where he subsequently awoke after witnessing Ichigo's Hollowfication. Lightning strikes are a frequent occurrence here. There are also withered trees composed of bones littered across the landscape, from which Kokutou hangs the bodies of Renji and Ishida for Ichigo to see.