- the Assumption of the Blessed Virgin Ukrainian Orthodox Cathedral at 1000 Byron Avenue, (closed Saturday, open Sunday noon-4)
- the Keg Manor on Richmond Road, 529 Richmond Road (closed Saturday) and MapleLawn Gardens at the same location
- Lemieux Island Water Purification Plant at 1 River Street.
- the Ottawa Mosque at 251 Northwestern Avenue
- St. Francois d'Assisse Church at 20 Fairmont Avenue
- The Standard Bread Company Building which houses both the Enriched Bread Artists at 951 Gladstone Avenue and the Gladstone Clayworks Co-op Pottery Studio at 949b Gladstone Avenue
- Traffic Operations Public Works at 175 Loretta Avenue (virtually across the street from the Standard Bread Co.)
My other further-afield picks from the kids' list are Sun-Tech Tomatoes together with Watsons Mill in Manotick (see my blog posts on these from 2 weeks ago), the Diefenbunker, the OCTranspo Walkely O-Train maintenance facility and the Ottawa Mail Processing Plant.
Child friendly locations are listed at http://www.ottawa.ca/residents/heritage/doorsopen/kids_en.html. A map of all locations can be viewed at http://ottawa.ca/residents/heritage/doorsopen/buildings/googlemap_en.html (though the location of the Ottawa Mosque is innacurate - it is on the north side of Scott St.). There will be a guide in the May 29th Citizen as well as at Bridgehead locations throughout the city. Most locations are open both days from 10-4 but there are a reasonable number of exceptions so check the guide before you head out.