...If you are driving (to and or from) then I MUST turn your attention to some of the best pizza you will ever encounter.
While Driving up (or down) I would strongly recommend PEPE's Pizza in New Haven (even it's original location next door called "The Spot")...New Haven is about 35 minutes south of Hartford, but unless you take I-84 it is along the way and worth a stop
People really LOVE the white clam pie...unlike anything else. look it up!
....there are other incarnations of this legendary establishment in places along the way as well: Fairfield CT, Manchester CT (halfway between Hartford and the main campus), and if you are feeling lucky there's one at the Mohegan Sun Casino as well as a NY location)...if the very long lines prove too intimidating, then you won't even want to consider it's smaller and less accessible rival at the other end of street SALLYS (very good, but not worth the hassle).
you best options would be to call ahead and get the pizza to go (at least there is no waiting in line) or find a place about a mile away called Modern Apizza...almost as good as pepe's (therefore better than more or less everything else)...Pizza is always ready in 20 minutes and there is rarely a wait.
another option would include the potato and bacon pie at a bar called (wait for it ....) BAR...BUT if you go to bar, you might as well go across the street to the small building that you might mistake for a 19 century garage: LOUIS LUNCH...BIRTHPLACE OF THE HAMBURGER (you can look that up too)
....and if you DO go to Pepes in New Haven, be sure to stop next door to Libbys pastry for the 2nd best Italian ice in the world, or whatever else you might want........