On Oct. 31 from 2 p.m. to 4 p.m. Lexington Market, 400 W Lexington St, Baltimore, Maryland 21201  is bringing Trick or Treating inside the Market with family activities such as Trick or Treating at the Merchant Stalls, decorating pumpkins and cooking demos for child approved meals using local and seasonal items available at the Market.  This event is free and open to all.  Children areencouraged to show off their Halloween Costumes. There will be complimentary pumpkins that children can decorate and take home along with candy and other Market giveaways.