Visit the Yangguan Pass and it's museum, you may learn more history about the ancient Silk Road in the museum.

The Yumen Pass & Great Wall of Han Dynasty, Yangguan Pass (L) Visit the Yumen Pass (Jade Gate Pass) & Great Wall of Han Dynasty, In history, the Han Dynasty built many walls to consolidate the safety of the frontier region as well as exploring ways to do business with western region. Instead of piling up stones or bricks layer upon layer like other dynasties' walls, the Han Dynasty Great Wall is built by using the local sand and weed. These two constructional materials were added by putting one on top of another