Hell-Shandalar or Chandelier
Note:that my view of hell is inspired by LoveCraft and Dark Souls....and Magic the Gathering.
Sen:Hell's waiting room or visitation center.If angels and Saints visit hell,they are likely to be there.Occasionally populated by some of the damned.Jesus can walk into hell,Jesus can walk out of hell,also serves a purpose for those capable and willing to leave hell.
Requiem:Second Highest point in Hell,Second largest city.The Damned farthest from true damnation.It is a City of Spires.
Cube:Largest city,denomination in hell.Diverges from Requiem.Has multiple other names.
Leng/Undead Asylum:2 smaller cities of hell,Leng tends to be for the oldest of the damned.The space for the Undead Asylum tends to be occupied currently by a placeholder....population insufficient to be a major city.