Restored to its present condition in 1985 and 1989, this complex of red brick takes the form of a sunken, rectangular basin, into which a flight of steps descends on the northern side. The principal structure, which projects from the southern wall of the basin, was apparently modelled on the legendary Mount Mahameru. No longer complete, it consisted of terraced foundations, upon which would have rested a concentric arrangement of 'turrets' surrounding the highest peak of the building.