Tallest tower, views
Artifacts, history, culture
Beaches, bike rides, views
Amusement park rides
Wildlife, habitats
Historic castle, gardens
Underwater creatures, shows
Interactive exhibits, planetarium
Art collections, sculptures
Trails, zoo, picnic
Food, vendors, history
Experiments, open sci lab
Hip, artsy, shops
Majestic falls, boat ride
If you have more time, take a day trip to Algonquin Provincial Park for outdoor activities. Alternatively, remove Niagara Falls and add a brewery tour instead. If you have less time, prioritize CN Tower, Royal Ontario Museum, and Toronto Islands as must-see attractions.