accommodating one or two people. is a larger tent for a group. is a fabric shade on vertical supports, replacing a wall. is a large, rectangular tent with vertical fabric walls, and is a generic name for and . Giovanni da Pian del Carpine's book, Ystoria Mongalorum (History of the Mongols), reported that during the 1246 enthronement ceremony for Guyuk Khaan a tent with a capacity of 2,000 people was erected on the Tamir River. The marquee was supported by pillars decorated with gold leaves, and the internal side of the walls were covered with canopy. Later designs of many temples were based on . Imperial period The remains of the Mongol Empire capital, Karakorum, were first rediscovered and studied by S. V. Kiselev. Karakorum, in the Orkhon River valley, was founded by Genghis Khan in 1220 as a military centre; in 15 years, it also became an administrative and cultural centre of the empire. The Tumen Amugulang palace (palace of the Great Khan) was in the centre of the city. Based on the records of William of Rubruck, most scholars believe that a silver, tree-shaped fountain stood in front of the palace; however, according to others the fountain was inside the palace. According to Rubruck, four silver lions stood at the foot of the Silver Tree and fermented mare's milk (, a favourite Mongol drink) flowed from their mouths. Four golden serpents twined around the tree. Wine ran from the mouth of one serpent, from the second serpent, mead from the third and rice wine from the fourth. At the top of the tree, an angel blew a bugle. The tree's branches, leaves and fruits were made of silver. It was designed by a captive sculptor, William of Paris. The khan sat on a throne in the north end of the yard, in front of the palace. Excavations partially confirmed the description, and the buildings were heated by smoke pipes installed under the floors. The khan's palace was built on a platform. Genghis Khan's son, Ögedei, ordered his brothers, sons and other princes to build palaces in Karakorum. The city contained Buddhist temples, Christian churches and Muslim mosques. There were sculptures of tortoises at each gate of the four-sided, walled city. Steles on the tortoises' backs were topped with beacons for travellers in the steppe. Karakorun's construction was supervised by Otchigin, youngest brother of Genghis Khan. Other cities and