Yedi is one of the origins of the smelting industry,and also a rare scorpion-like ancient village that is preserved very well in North China.

• 冶底，冶炼之地，是古代冶炼技术的发源地之一，乃通宵古镇，为中国北主方罕见的保存完整的蝎子型古村寨。