I've searched some of the posts and found some good ideas of what to do in Toronto. I'll actually be there for work from Sunday to Thursday. The wife will join me Thursday night through Sunday night. Thus far, I have the following:

CN Tower
Chinatown
Falls
Yonge Street
Toronto Islands
St. Lawrence Market
Hockey Hall of Fame
Madison Avenue Pub

Any other suggestions? I probably won't be able to do all of the above, but we'll prioritize.

Kit Kat Italian Bar & Grill
297 King Street West

Also if you are going to play golf go to Angus Glenn outside of town. AWESOME!

Go to at least a few innings of a ballgame at the stadium. It is pretty cool and was the first of its kind. I think you can get pretty cheap tickets. Go for a few innings.

I would skip out of seeing anything in Toronto and head down to Niagra Falls for the weekend. Toronto really doesn't have anything great that any other big city doesn't have. I've been living here for almost a year now and it's very blah.

I wouldnt go to Chicago either because it is kinda like New York except smaller and a touch like Philadelphia except bigger.

I wouldnt go to DC becuase it is like London except with American stuff instead of English stuff or go to Copenhagen because it is kinda like Munich except Danish.

WTF?