Exhibits may be found on both sides of Massachusetts Avenue between Everett Street and University Hall (also known as the Porter Square Exchange Building). Four more exhibits are located in the Porter Square Shopping Center across from the Porter Square T stop, three in the Gravestar Community Windows at CVS and one at TAGS Hardware, across the parking lot. If you walk the full loop, up one side and back down the other, the walk is about 1.5 miles. You can also zig-zag at the intersections to cut the distance in half.
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