Mausoleum of Oldjetu, by Unknown Artist, 1313 - 1316, 14th Century. Iran, Ilkhanid, Zanjan, Sultaniye, Mausoleum of Oldjetu. View of the outer gallery portico, lavishly decorated with a variety of masonry and stucco patterns designs. The bright colors of the decoration include different tones hues of red, yellow, green and white. The geometric designs patterns are embellished by finely made phytomorphic insertions and knots, highlighted by beautiful calligraphies. 2009 photograph.