Introduction to the Baibu Ladder: The Baibu Ladder was built when Gongyuan Park was built. It was originally built with 100 steps, so it was called the "Baibu Ladder". When Tang Shaoyi lived in Gongyuan Garden, he often climbed this step to the top of the mountain to exercise. After Tang Shaoyi was assassinated in 1938, the building collapsed due to a landslide during a heavy rain, leaving a relatively complete level 76, which happened to be consistent with Tang Shaoyi's birth age. There are still more than 50 levels left.