Ikh Khorig
The Ikh Khorig, or Great Taboo, is a area in the Khentii Aimag of Mongolia, believed by some to be the location of Genghis Khan's grave, graves of Yuan Mongol Khans and Northern Yuan Khans has been carefully guarded for most of its history, and it is only since the late 1980s that the area has been open to archaeologists.
Background
According to The Secret History of the Mongols, Genghis Khan chose the area as his final resting place when he went hunting near the Burkhan Khaldun mountain in the Khentii Mountains of his homeland. He sat down to rest under a tree, and was so impressed by the scenery that he said: "What a beautiful view! Bury me here when I pass away." Burkhan Khaldun was also greatly important to Genghis Khan because of his origins near there and because he escaped from Merkit enemies on the mountain in the late 1100s; he pledged at the time to honor the mountain from then on with sacrifices and prayer every morning.It is not known whether he really was buried there, but the Mongols took several steps to give the impression that he was. The area, already made difficult to reach by a series of mountains covered in thick forest, was declared sacred, and off limits to everyone except family members and the Darkhad, a group of elite warriors and their families, who were given the task of ensuring that no one else entered under penalty of death. The only legitimate reason for entrance was to bury a relative of Genghis Khan.