This weekend, tons of spooky events are planned around the city. The Canada Agriculture Museum hosts its Barnyard Halloween Party from Friday through Sunday. Participate in a trick-or-treat scavenger hunt in the barns, a costume parade and make a pumpkin dessert. At the Canadian Museum of Nature, Halloween events include a close-up with creepy crawlies, face painting, airbrushed tattoos and a people’s choice costume contest. Love candy? Go trick-or-treating at city hall during the mayor’s fourth annual Halloween celebration in support of the Ottawa Food Bank Baby Supply Cupboard Saturday evening or at Rideau Hall from 5 to 8 p.m Sunday.