Yangguan Pass was built in the 1st century BC during the reign of Emperor Wu of the Western Han Dynasty. Like Yumen Pass, it used to be an important frontier pass and the earliest customs in China'...

Excavated since 1,600 years ago (366), Mogao Grottoes consists of 735 caves in the cliff wall of about 1,600 meters long, where there are murals of 45,000 square meters painted in different dynasties,...

The Site of Yumen Pass is the most important remains of the Han Empire at the western end of the Hexi Corridor from the 2nd century BC to the 3rd century AD. Located on the south bank of the ...