Joan Wickersham describes a public tour of private libraries in Concord, Massachusetts, USA, in her article, On The Shelves, October 7, 2011, Boston.com
This tour featured six libraries, apparently personal ones, and was sponsored by the Friends of the Concord Free Public Library This is an idea that could be developed in Vancouver, British Columbia, for sure, and I'd sign up quickly. I'd also love to see a tour developed for local specialized libraries. There's a number of those here.
A tip of my hat to the New England Historic Genealogical Society's The Weekly Genealogist (Vol. 14, No. 42) which mentioned this article.
The author, Joan Wickersham, blogs about books and more at: www.joanwickersham.com