Do you need tickets for the Ming Palace Ruins Park?

According to official website who inquired about the hornet's nest, the former site of the Palace Museum in Ming Dynasty implemented the park system and did not need tickets. Walking in from the noon gate, you can see that the brick wall is crumbling and the moss is mottled, which makes you feel that you have revisited the old capital and died in an isolated city. The opening hours are from 6 to 20.