What is around the Rogers Centre?

I am going to a Tigers/Blue Jays game at the Rogers Centre. I have never been there before and it would only be my second time in Toronto, my first time I don't even remember much.

What are some places around there (20 miles or so) that would be fun to check out pre-game? Just stuff to do to keep my girlfriend and I occupied? Also, any good restaurants you guys would recommend?

Thanks.
 
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