Kastau is the god of architecture, carpentry, masonry and all workers and craftsmen involved in the construction of cities. Despite being the brother of [URL=/help/cult?type=kaabe]Kaabé[/URL], his idealised vision of the world is opposed to that of his sister: according to him, lands should be covered with monuments, and he sees in stone and trees only materials sources used for the creative spirit of human genius. The legendary Pyramid of Kastau would be the first work of architecture to have been built on the surface of the Earth. It was buried in the sand a long time ago and has not been found yet.