Ontario

Downtown Niagara Falls tour. Heritage walking tour of Downtown Niagara Falls, developed by the City of Niagara Falls. Excellent images.  [gdv]
http://www.city.niagarafalls.on.ca/visitorinsights/heritagetour/

Ottawa Parliament Hill tour. Somewhat disorganized website of Parliament Hill, with interactive aerial photos.  [gdv]
http://www.ottawakiosk.com/parliament/index_start.html

Ottawa Historical tour. Historical tour of Bytown/Ottawa. [gdv]
http://collections.ic.gc.ca/bytown/virtual_tour/canada-capital.htm

London Museums and Historic sites. Gateway website by the City of London to a variety of museums and historic sites in the city. http://www.london.ca/Recreation/Arts_Culture/museums.htm