Three moats
Rings of water.
Walter Grassroot — CC BY-SA 3.0 · Sinopitt Xu — CC BY-SA 3.0 · Slyronit — CC BY-SA 4.0 · Slyronit — CC BY-SA 4.0 · Slyronit — CC BY-SA 4.0 · Slyronit — CC BY-SA 4.0 · Cangminzho — CC BY-SA 4.0 · Slyronit — CC BY-SA 4.0
The ruins of an ancient city in Changzhou's Wujin District, dating from the late Spring and Autumn period some 2,500 years ago. It is the best-preserved city of that era in China and became a national protected monument in 1988. Its plan is unique: three nested earthen walls ringed by three moats, the small inner city at the centre, then the inner city and the outer city, each with its own moat, so from the air it looks like rings of water and green, and visitor boats run along the moats. The ruins park costs CNY 20, 70 with the moat boat, from 9 am to 5 pm, per visitor guides, and a theme park next door has its own ticket.
Rings of water.
Between walls.
Spring and Autumn era.
Hutang town, Wujin District, Changzhou
It is the best-preserved Spring and Autumn city in China, with three nested walls each ringed by a moat; tickets cost CNY 20, or 70 with the boat, per visitor guides.