is there any temple or any big park that is most attractive in Changchun? thank you

Wen Temple (Confucius Temple) is the most famous temple in this city. The address is No.239, Dongtian Street, Dongguan District.
For park, Jingyuetan National Forest Park is highly recommended. It's about 11 miles away from the downtown area. This park is famous for its picturesque scenery; therefore it is revered as ‘a tranquil place in a blatant city'.