The Moon Gate is found in the garden of Xingjiao Temple (Temple of the Flourishing Teaching) situated on Shaoling plateau, (12 miles) southeast of Xi'an.   It was built in memory of Xuanzang, a great Buddhist translator and traveler of the Tang Dynasty (618-907).   I spent many hours out there sketching and sitting in silence just to get away from the city of 9,000,000 people.