Zigguratwas one of the most prominent structures in ancient Mesopotamia. Ziggurats werebuilt in pyramid shape, generally following a cubic structural base. Sumeriansdeveloped the belief that Gods were actually living on top of the buildings. Inthis ring, we are paying homage to the indispensable status of the Ziggurats inthe history of civilization. The black rock crystals on the corners reflect theinfluence of the building on the rest of civilization whereas the square shapeiterates its structural form.