From the Source, 69 West St at Milton St, Greenpoint, Brooklyn. Subway: G to Greenpoint Ave. Pick up jewelry, housewares, art and vintage apparel at this hyperlocal market. For this edition, the crew behind the Greenpointers site (and former blog) has teamed up with the Brain-Cave Festival (facebook.com/braincavefestival)—which showcases underground and indie Brooklyn artists—to present live music through the day. Catch acoustic sets from Viento, Jon Mizrachi and Backwards, plus Supercrush Studio DJs.