Githzerai who call Limbo home congregate in cities and monasteries. Those githzerai who congregate in cities do not follow the monastic tradition the race is most known for. Instead, they revere straightforward martial prowess and all the deadly arts of a fighter or spellcaster. However, even cityborn githzerai look with favor on those githzerai who have the strength of spirit to leave the city behind to train in a free-floating monastery adrift in chaos.
Shra'kt'lor: This is the githzerai's largest city. A fighter/wizard general called the Great Githzerai rules the city and is revered as a deity-king. The city is an austere place with massive iron gatehouses piercing seven concentric rings of high, thick granite walls. Quarters inside the city are rather cramped, though an open market is broad and filled with produce grown on stabilized earth as well as other items mundane and wondrous.
Monastery of Zerth'Ad'lun: One of many monasteries, Zerth'Ad'lun follows the teaching of Sensei Belthomais, a 16th-level monk. Belthomias teaches a specialized martial art (as do many monasteries), and those students who fully embrace his teachings are also called Zerth cenobites. Those who practice zerthi—“Zerth's teaching” in the githzerai tongue—claim to peer a moment into the future in order to aid their martial expertise.
From the exterior, the monastery appears almost like a small glade of stone spires and towers layered around a sphere about a quarter-mile in diameter. Taking full advantage of the subjective gravity of Limbo, the interior of the monastery possesses winding stairs that connect “floors” to “walls” or “ceilings.” All the surfaces are really floors for those who don't mind adjusting their own subjective orientation. Vast halls provide room for mass martial arts training, while hundreds of tiny cells lighted by dim candles provide privacy for individual meditations.
The schedule of a monk at Zenh'Ad'lun is strict and harsh, but the rewards of the spirit are considered sufficient compensation. The monastery welcomes visitors and may put them up for as long as a week in quarters set aside for hospitality. Nongithzerai who are interested in studying at the monastery are allowed to do so, although the supplicant must be willing to spend a few months in the monastery learning the basics and abiding the schedule of a cenobite.
Source: Unknown