A peaceful southern city

The Oasis of Two Scimitars
Caste of Builders
Third of the High Castes. This caste includes architects, engineers, draftsmen, stonemasons, and many other professions which concern themselves with the creation of the physical and engineering marvels of Gor. Also among the caste of Builders are the inventors and technicians who develop such works. Their caste color is Yellow.
Inside, the tunnel, though dim, was not altogether dark, being lit by domelike, wire-protected energy bulbs, spaced in pairs every hundred yards or so. These bulbs, invented more than a century ago by the Caste of Builders, produce a clear, soft light for years without replacement. Tarnsman of Gor, page 196
In Ar, for example, early in the day, a member of the Builders will go to the roof on which the Home Stone is kept and place the primitive symbol of his trade, a metal angle square, before the Stone, praying to the Priest-Kings for the prosperity of his caste in the coming year; later in the day a Warrior will, similarly, place his arms before the Stone, to be followed by other representatives of each caste. Most significantly, while these members of the High Castes perform their portions of the ritual, the Guards of the Home Stone temporarily withdraw to the interior of the cylinder, leaving the celebrant, it is said, alone with the Priest-Kings. Tarnsman of Gor, page 68
The road, like most Gorean roads, was built like a wall in the earth and was intended to last a hundred generations. The Gorean, having little idea of progress in our sense, takes great care in his building and workmanship. What he builds he expects men to use until the storms of time have worn it to dust. Yet this road, for all the loving craft of the Caste of Builders which had been lavished upon it, was only an unpretentious, subsidiary road, hardly wide enough for two carts to pass. Indeed, even the main roads to Koroba were a far cry from the great highways that led to and from a metropolis like Ar. Outlaw of Gor, page 25
Torm, my friend of the Caste of Scribes, had been to such fairs to trade scrolls with scholars from other cities, men he would never have seen were it not for the fairs, me of hostile cities who yet loved ideas more than they hated their enemies, men like Torm who so loved learning that they would risk the perilous journey to the Sardar Mountains for the chance to dispute a text or haggle over a coveted scroll. Similarly men of such castes as the Physicians and Builders make use of the fairs to disseminate and exchange information pertaining to their respective crafts. Outlaw of Gor, page 47
In the streets of Tharna shortly after the end of the revolt the caste colors of Gor began to appear openly in the garments of the citizens. The marvellous glazing substances of the Caste of Builders, long prohibited as frivolous and expensive, began to appear on the walls of the cylinders, even on the walls of the city itself. gravelled streets are now being paved with blocks of colored stone set in patterns to delight the eye. The wood of the great gate has been polished and its brass burnished. New paint blazes upon the bridges. Outlaw of Gor, page 248
Further, members of the Castes of Physicians and Builders use the fairs for the dissemination of information and techniques among Caste Brothers, as is prescribed in the codes in spite of the fact that their respective cites may be hostile. And it might be expected members of the Caste of Scribes gather here to enter into dispute and examine and trade manuscripts. Priest-Kings of Gor, page 9
The passage was lit with energy bulbs, of the sort which I had encountered in the tunnel of Marlenus which led beneath the walls of Ar. There was nothing in the lighting of the passage, or its construction, to suggest that the Priest-Kings' Caste of Builders, if they had one, was any more advanced than that of the men below the mountains. Priest-Kings of Gor, page 27
The man from the Caste of Builders then sat cross-legged on the ground and took from the pouch slung at his waist a tiny, cylindrical Gorean fire-maker, a small silverish tube commonly used for igniting cooking fires. Priest-Kings of Gor, page 138
I supposed many upon them used the long glasses of the Caste of Builders to observe the field of the stakes. Nomads of Gor, page 113
The room was innocent of energy bulbs of the Caste of Builders. In the walls were torch racks, but there were now no torches. Assassin of Gor, page 39
On the other side of the belt, there hung a slave goad, rather like the tarn goad, except that it is designed to be used as an instrument for the control of human beings rather than tarns. It was, like the tarn goad, developed jointly by the Caste of Physicians and that of the Builders, the Physicians contributing knowledge of the pain fibers of human beings, the networks of nerve endings, and the Builders contributing certain principles and techniques developed in the construe lion and manufacture of energy bulbs. Assassin of Gor, page 84