House Karoon was sundered in the time of the Chosen, but even before it fell, Karoon had huge tombs with beautiful decorations which were the talk of all Tridon. They usually have an above ground component with underground components as well. They are usually made of stone, (since wood is so rare out in Karoon), and carved with fanciful animals and scenes. By the time of the High King's Sword, (about 3000 years after Karoon's fall), the outer parts of the tombs are destroyed by wind or looters, but most of the underground tombs remain intact.
Tomorrow: Details of plans for underground parts of the tombs.