Lightspires are ancient elven structures, built in the days of the aeroliths to serve as guides for the flying cities. Though found around the world, the majority of lightspires are located in Brightmarch, the Laqto Jungle, and around the Gulf of Aserdus. Left to decay for millennia, today most lightspires lie in varying states of ruin.
Lightspires are tall structures, the largest reaching upwards of 500 ft into the air. To reach such monumental heights, the walls of the each cylindrical tower gradually narrow from their wide foundations. Lightspires are primarily stone and metal buildings, constructed in significant part by the material discarded in turning the asteroids of the aeroliths into flying cities. Pieces of the lightspires were moved into place by elven aerotheurges, aided by the significant amounts of ansharite in the matter from which they were built.
Atop each lightspire sat large, polished ansharite mirrors, encased in a shell of carved of transparent crystal from the caves underneath Kharakun. Arranged around a central, magical light source, these mirrors reflected and concentrated the already intense light enough that it could be seen more than a hundred miles away. These lights were watched by mages known as spire-keepers who were tasked to ensure they were never interrupted. This role was considered to bring high distinction in elven society during the era of the aeroliths, though today no spire-keepers remain.
The city-state of Teshub still operates a functional lightspire. In the absence of the aeroliths, today the Teshub lightspire is used to provide a beacon for ships crossing the Gulf of Aserdus.