Fengxian Temple is the most famous cave in Xishan Grottoes of Longmen Grottoes in Luoyang, because Luxena Buddha is here. The most famous of Longmen Grottoes is the Luxena Buddha in Xishan Grottoes. This image must be found in various publications representing Longmen Grottoes. Legend has it that Wu Zetian is a prototype sculpture, 17 meters high. [Fengxian Temple is shaped according to the image of Wu Zetian, which is the highest artistic level, the most rigorous overall design and the largest scale in Longmen Grottoes. ]