My favorite site we visited was the Daniel Burnham arch that reminisces of the old Union Station in Columbus. The Union Station was the train station designed by Daniel Burnham in 1897. 
However, with the innovation of technology, passenger trains were becoming less useful in the late nineteenth century. Despite outcries of Columbus residents, the train station was demolished. Only this last arch remains, now residing in front of McFerson Commons in the Arena District.
It is a reminder of this lost past of the city. Daniel Burnham is my favorite architect, so I appreciate that at least a portion of his beautiful architecture was saved and is put on display. I also loved the Wyandotte Building, which was also designed by Daniel Burnham. I’m very happy that Columbus houses two pieces of architecture by my favorite architect.