What abandoned places in Nanjing are worth seeing? What is the reason for the recommendation?

The ancient city wall of Nanjing is worth a visit. As a part of the Ming city wall, the perfect architectural structure displayed by Nanjing ancient city wall is worth observing and appreciating. Nanjing's historical and cultural heritage will also be deeply understood in the ancient city walls. The ancient Confucian temple on the outskirts of Nanjing is also worth visiting. It is full of cultural atmosphere, and there are not many people here. The murals inside are quite beautiful.