In Qi Dynasty, the mountains were undulating for more than twenty miles north of the city, with rolling mountains, lush green and green as forests, and the surrounding mountains and forests were lingering like a picture of green smoke.Among this mountain covered with a forest like ink, there is a mountain top that stands tall.This is Jianlishan.The cliffs are towering, the cliffs stand steeply, and the walls are filled with ditches and ravines, as if they were cut by thousands of sword blades, which seem to be covered in scars and shocking.Jianli Mountain is a barrier to Qi's northern dynasty and is also a shelter for the upper guard city.