There are few things I like better than walking along a great Main Street. For the past two days, I’ve been lucky enough to walk around four terrific Main Streets:  Middletown, Connecticut; Amherst and Northampton, Massachusetts; and tiny Red Hook, NY. You can pick up life lessons on Main Street – like the bumper sticker I saw on a car parked along Northampton’s Main Street this morning:  Just say NO to Negativity. You can also meet very interesting people.  While taking photos around Northampton, I was approached by a resident of the streets of the city.  He must have seen my inner preservationist (sometimes people who look at the world a little differently have great powers of observation), because he told me he liked to work for the “hysterical society.”  He then proceeded to point out the historical courthouse (where Calvin Coolidge first practiced law) – a very nice 1885 building seen in the photo above. My new friend then pointed in the opposite direction and identified the Northampton City Hall.  “See those turrets?” he …