Are Going to Twenty-three Miles and Looking at Twenty-three Miles the beginning of two different poems?

Yes, A Line of Twenty-three Miles is a poem written by Shao Yong, a writer in the Song Dynasty, who loves his hometown. This poem describes the author's walking in the countryside, in which "a trip of 23 miles" means that he left the village for 23 miles. Looking at Twenty-three Li is a poem in Wang Fu, another poem by Liu Yuxi in the Tang Dynasty. This poem describes a woman's longing for her husband, in which "looking twenty-three miles" means that she stands on the mountain and looks out of the village. So "going twenty-three miles" and "looking twenty-three miles" are the beginning of two different poems.