Here in Boston, where the Charles River empties into the harbor, are these two bridges. I liked the juxtaposition of the angular old counterweighted one with the soaring grace of the much newer suspension span. 

Humans build bridges that are both physical and personal. The physical ones are easy to understand, they help us cross things. The personal bridges join humans together. They are hard to construct and, in this fractious day and age, even harder to maintain. 

Would that this were not so.