There's a statue of him above his grave. They can make a pilgrimage to it if they'd like!
There is no stature above the Khan's grave because no one know where his grave is. He was buried in the Gobi in traditional Mongol fashion.
The Mongols have a legend that, if the grave is found and the Khan's sword is drawn, he will return and reclaim his empire.
Let's have NASA and USAF start combing Mongolia by the inch and find that grave.
Good Morning, al Qaeda!
Guess who has returned.
No one knows where Chinnghis Quan is buried [ditto Ugedai, Guyk, Mongke and Qublai. They've never found his grave.