What are the free attractions in Kaifeng?

Recommended free scenic spots in Kaifeng: Imperial Street of Juniper Tree Experience the history of the ancient capital, the Central Plains culture of the Seven Sacred Corners, the lakes and mountains of Baogong Lake, the water conservancy project of the Yellow River Water Control Project, the ancient garden beauty of Yuwangtai Park, the Buddhist culture of Fanta, the ancient city style of Drum Tower, the Buddhist culture of Suoguo Temple, the Kaifeng history of the museum and the reading pleasure of the library.