Diamond City/Goodneighbor - The Commonwealth - Fallout 4 Ambience 

Diamond City, commonly referred to as the "Great Green Jewel," is a large fortified settlement, built within Fenway Park, a pre-War baseball stadium. With its own police force, public school, robust agriculture and industry, and a great deal of economic influence across the region, it is by far the most prosperous settlement in the Commonwealth. Meanwhile Goodneighbor, previously known as Scollay Square before the Great War, is a town inhabited by ghouls, criminals, and other people who do not fit in elsewhere in the Commonwealth.