* Most visited: This would likely be Niagara Falls, drawing millions of visitors each year.
* Most iconic: This could be a tie between Niagara Falls, Banff National Park, and the Rocky Mountains.
* Most popular among specific demographics: For history buffs, it might be Parliament Hill in Ottawa. For nature lovers, it might be Jasper National Park.
Here are some of the most popular tourist attractions in Canada:
* Niagara Falls: A natural wonder and a must-see for anyone visiting Canada.
* Banff National Park: Stunning scenery, hiking trails, and wildlife viewing.
* Rocky Mountains: Breathtaking mountain ranges, glaciers, and lakes.
* Toronto: A vibrant city with world-class attractions, including the CN Tower, the Art Gallery of Ontario, and the Hockey Hall of Fame.
* Vancouver: A beautiful city nestled between the ocean and mountains.
* Montreal: A charming city with a rich history and culture.
* Quebec City: A historic city with European charm.
* Jasper National Park: Home to some of the most stunning scenery in the Canadian Rockies.
* Calgary: A bustling city with world-class events, like the Calgary Stampede.
* Ottawa: The nation's capital, with iconic landmarks like Parliament Hill and the Rideau Canal.
Ultimately, the "biggest" tourist attraction in Canada is subjective and depends on your interests.