Come check out the Arts Council’s new roaming Night Market series starting on Saturday, May 11, from 5-10 p.m. in Union Square. A joint effort with the Somerville Flea, 36 vendors of all things artisan and vintage will be selling their wares against a backdrop of live music. Attendees (21+) can enjoy a beverage at the Brass Union-sponsored beer garden as well. Night Market events are also scheduled for Ball Square and Winter Hill later this summer. More info at Night Market.