nearby Sirçali Kümbet is not quite as elaborate. The Çifte Kümbet (Double Tomb) (also in Kayseri), 5 km along on the way to Sivas, is yet another of these characteristic Seljuq royal tombs. The Kümbet of Halime Hatun About 2 km to the north of the Gevaş district on the shore of Lake Van there is an old graveyard that has been in use ever since the Seljuq period. One of the most impressive pre-Ottoman grave monuments is the Kümbet of Halime Hatun, which is in the same graveyard. This monument was recently repaired and changes made to the entrance to the crypt. It attracted the attention of a number of travellers who visited the area in the last century, prompting W. Bachmann to make a serious study of it. However, the fırst scientific study of this monument was carried out by Prof. Dr. Oktay Aslanapa. The Kümbet of Kadem Pasa Hatun This monument lies 1–2 km to the east of Erciş, at the junction of the Erciş–Van and Patnos–Van roads. It was repaired in the 1970s, when crumbling stones on the base and main body of the monument were replaced. Stone staircases leading to the crypt and to the upper floor were built at the same time. A wall was also built around the garden in which the monument lies. The Zortul Kümbet This monument, which lies on level ground to the left of the Erciş–Patnos road above 5 km northwest of Erciş itself, has no special name. Abdürrahim Şerif Beygu, who visited the monument in 1931, stated that its east window part of the spire had crumbled away. Oktay Aslanapa confirms this information, stating that the upper part of the roof had collapsed and that the monument was in a very poor state. Repairs have been carried out which have halted its deterioration. Gumbaz Gol Gumbaz Gol Gumbaz (, ) is the mausoleum of Mohammed Adil Shah (1627–55) of the Adil Shahi dynasty of Indian sultans, who ruled the Sultanate of Bijapur from 1490 to 1686. The tomb, located in the city of Bijapur, or Vijapur in Karnataka, southern India, was built in 1659 by the famous architect, Yaqut of Dabul. The structure consists of a massive square chamber measuring nearly on each side and covered by a huge dome in diameter making it one of the largest dome structures in world. The dome is supported on giant