Introduction to Tongan Tianmen: Tongan Tianmen is the second among the New Ten Scenic Spots of Shuangxi. It is located halfway up the mountain in the north of Jingshan Lake, three kilometers upstream of Tianmu Stream. This majestic Tianmen was built by Fang La with his astonishing perseverance. It was erected to attract literati from ancient and modern times to come here to recite poems and paint.