CN Tower, Toronto, Ontario

Yes towers with observation decks tend to attract tourists, even people who make a wrong turn. But how can you go thru Toronto without going up the CN Tower. And looking thru / standing on the glass floor!

Niagara Falls, Niagara Falls, Ontario

Where to begin? The legends, the tightropes, the barrels, the tourist traps that have sprung up around this amazing fall of water. And yes the mega hotels that give you views of it (assuming you're on a high enough floor).

Henry Ford Museum, Dearborn, Michigan

The Henry Ford Museum. Greatest collection of everything in America. Famous trains, Cars that have driven from the tip of South America to Canada (something I always thought about doing), and even old Presidential motorcades.