Khan: The Golden Yurts

Promo expansion from Essen 2010. From the package:

Instead of an ordinary yurt, each player may also place his Golden Yurt once per game. If a conquer tile is built over this yurt, one yurt of the player in question is in any case (also) placed on the tile, regardless of which player has the majority. The Golden Yurt is then put back into the box.