Valyrian-vägarna är gjorda av smält sten och upphöjda av marken för att möjliggöra dränering. De är vanligtvis tillräckligt breda för att 3 vagnar ska passera sida vid sida och är extremt raka.
During one stop, he used the time to have a closer look at the road. Tyrion knew what he would find: not packed earth, nor bricks, nor cobbles, but a ribbon of fused stone raised a half foot above the ground to allow rainfall and snowmelt to run off its shoulders. Unlike the muddy tracks that passed for roads in the Seven Kingdoms, the Valyrian roads were wide enough for three wagons to pass abreast, and neither time nor traffic marred them. They still endured, unchanging, four centuries after Valyria itself had met its Doom. He looked for ruts and cracks but found only a pile of warm dung deposited by one of the horses.
A Dance with Dragons, Tyrion II
Det finns ingen information om hur vägarna är gjorda, men eftersom det inte finns några sprickor i dem efter fyra århundraden och de är smältsten är det inte osannolikt att de är gjorda av smältsten. Speciellt med tanke på att drakebrand är tillräckligt varmt för att smälta sten och att Valyrians hade drakar självklart.
Stone does not burn, Harren had boasted, but his castle was not made of stone alone. Wood and wool, hemp and straw, bread and salted beef and grain, all took fire. Nor were Harren's ironmen made of stone. Smoking, screaming, shrouded in flames, they ran across the yards and tumbled from the wallwalks to die upon the ground below. And even stone will crack and melt if a fire is hot enough. The riverlords outside the castle walls said later that the towers of Harrenhal glowed red against the night, like five great candles...and like candles, they began to twist and melt, as runnels of molten stone ran down their sides.
The World of Ice and Fire, The Reign of the Dragons: The Conquest