This is a loud and very lively Farmers' Market located in Boston's Italian North End. Bargain hunting is big here. Most of the market is "open-air", but there is an adjacent building with specialty items. You will find produce, fish, meats and other goodies and there are plenty of restaurants nearby. Some complain this is more of a "vendors" market rather than farmers' market. Regardless, it will be interesting.
Open Fridays and Saturdays year-round from dawn to dusk. Closest subway: Green/Orange Lines/Haymarket. It's right near Faneuil Hall.