Beautiful, clean, modern example of TheCity by lake Ontario, largest in Canada but not the capital - that's Ottawa. Summary below just one perspective; hopefully, many others will add insights and impressions: Close to the US border via Buffalo/Niagara noted for it's impressive skyline featuring the CN tower which until recently was the world's tallest free-standing structure, and the Rogers Centre (formerly SkyDome?) with it's retractable roof (where Toronto won the Baseball World Series in 1993. They also won in 1992 but were not at home). More info at http://www.toronto.com also apart from standard touristy stuff in Lonely Planet Toronto and similar guides a more revealing look can be found in Secret Toronto http://www.amazon.com/exec/obidos/tg/detail/-/1550224948/103-0901407-9885459?v=glance
Speaking of touristy stuff, Ed's Warehouse is worth a visit, if it's still there. Good steaks, though not quite RuthsChris? caliber.
Waterfront nice to visit and see small planes landing at the Island airport, and sailboats in the summer. In winter, island locals (some people live there) go ice skating; can see them with binoculars). The main Island (in the summer) has nice gardens and a mini fairground. From there, a good view of the glistening buildings also good spot for the airshow in August but crowded. Pier6 coffee shop is nice to relax in at the foot of York Quay. Fireworks on holidays, also free concerts. There is a hidden music garden (Queen's Quay just west of Spadina) designed by Yo-Yo Ma, who originally planned it for Chicago. Actually, Chicago feels very similar (by a great lake, lot's of tall buildings and art deco architecture).
Quick list of places to go downtown:
Ernest Hemingway lived in Toronto for several years working for the Star; they sent him to report overseas, which helped him become famous. Amazing when you go to Europe all the tourists want to go where he ate and wrote in Paris, Madrid, Rome, Venice but only place have found so far here that they said he used to frequent now renovated actually quite nice to eat but expensive is Oro http://www.ororestaurant.com, Toronto Murmur http://www.murmurtoronto.com is a new aural para GeoCacheing project with stories in the heart of the City. Bathurst/St. Clair just west of Yorkville has something in common with Roswell NM according to one story at http://www.nuforc.org/webreports/003/S03565.html.
UniversityOfToronto is a world class institution, along with many others such as Ryerson, YorkUniversity? etc.
A few notes from a visitor to Toronto:
WikiZens who live in Toronto (or elsewhere in Ontario):
Much of this probably belongs on WikiPedia if it isn't there already.