Yilu Pavilion is the remains of the Qing Dynasty agricultural test site, the upper floor has been damaged, only the remaining floor. In 2006, in order to commemorate the centenary of the opening of the Beijing Zoo to the public, the Park Management Office established a "100-year anniversary" monument in the pavilion. There is no cultural monument here. But there was this green pavilion in the Qing Dynasty, although it was built from the site.