Canada was formerly a British colony located north of the United States. It has two official languages, English and French, and a diverse population that is mostly Christian. Some of Canada's top attractions include Niagara Falls, various national parks, and five volcanoes. The largest cities are located near the southern border and have populations over one million, with Toronto being the largest city overall. Temperatures vary widely between northern and southern regions as well as between seasons, with warm summers and cold winters.