For the longest time I'd walk past Nathan Philips Square at City Hall, wondering what was up with the collection of animal head statues that surrounded the "pond." It took a bit of contemplation to realize they were zodiac symbols and had absolutely nothing to do with Alice in Wonderland (my first thought for almost anything I can not immediately explain, or bunny related), upon further investigation I discovered the 12 Zodiac Heads were actually sculptures created by Ai Weiwei.
The sculptures are preview of the Art Gallery of Ontario's current exhibit Ai Weiwei: According to What?, which runs until October 27th; and Toronto is the only Canadian city to feature Weiwei's adaptation of the bronzed animals once found on the fountain-clock of Yuan Ming Yuan Park; you have until September 22nd if you've had yet to see them.
Unfortunately Ai Weiwei will not have the opportunity to see his art displayed in person, as he was incarcerated in 2011 for his public criticism of his government and thus lost his passport privileges. Do yourself the favour and the man the honour of checking out his efforts.