AUGUST 17 TO SEPTEMBER 4 The summer isn’t complete without a trip to the Canadian National Exhibition. More than your average carnival, this end-of-season fair brings to the city an oversized playground filled with midway rides and games, aerial acrobatics, an ice skating show, a petting farm and even a casino. Epic culinary concoctions in the Food Building are always a highlight, as are the various international shopping pavilions. For even more entertainment, check out free concerts by the likes of Big Sugar (August 18), Nick Carter (August 19) and The Arkells (August 29). Exhibition Place, $12 to $16; call 416-393-6300 or check here for more information.