The Cangzhou Iron Lion is one of the oldest and largest iron castings in Chinese history — a 5.78-metre standing lion cast in 953 CE that has been exposed to the elements for over a thousand years. The sheer improbability of the object's survival gives it a different quality from most ancient monuments: it has been standing longer than most dynasties have lasted, developing a dense rust patina that has given it the texture of geology rather than manufacture.
The lion faces south, in the traditional positioning for guardian animals, and the scale is what strikes you first when you approach — it is substantially larger than a real lion, with a presence that makes clear why the craftsmen who made it were being paid to impress. The lack of visible seams on the main body, given the complexity of hollow iron construction at this scale in the 10th century, is the detail that specialists find most remarkable. A pavilion was built over it in the late 20th century to provide some protection from acid rain; the enclosure slightly reduces the drama but was probably necessary.