Trick or Treat Market

New England Open Markets holds Trick or Treat Market on Boylston Street, between Arlington and Charles Streets. It is the last outdoor Boston Open Market of the season. Vendors dress in vintage Halloween costumes, and shoppers can dress up too. Kids in costume can trick-or-treat at booths marked with a pumpkin. The vendor costume contest is in its 23rd year. Shoppers do not compete. Admission is free, rain or shine. Dogs on a leash are welcome. The market runs on a paved sidewalk.