Although it can be tricky catching the bus from metro station 1 without knowing Chinese, it's worth the effort to get to Jinshan Donglin Temple (even if it means joining a tour group) from more central Shanghai. Its Guinness World Records include the tallest indoor statue and the largest bronze gate, which is two more world records than any other Buddhist temple in Shanghai.
Originally unveiled in 1308, the temple was rebuilt again in the mid-2000's to fix structural issues. There is a lack of homogeneity to the architecture, but the temple and Guan Yin Hall are both visually brilliant and worth an hour or two of your exploration. Especially if you're making the effort to get outside of the usual Shanghai tourist circuit; otherwise, you could just settle for the City God temple just south of Yuyuan Garden.
Note:Located at 150 Donglin Street in Zhujing, Jinshan District.