Most Canadian cities are defined by hills and mountains, but Toronto has an upside-down quality. Its ravines are its hidden treasures, and you have to seek them out.

On this walk, you'll cross over Rosedale Valley and wind your way into Yorkville, a neighbourhood with a lively history, now filled with chic boutiques and restaurants. You'll hear about the people who lived and worked in these neighbourhoods along the way, from musicians and artists, to soldiers, sheriffs, schoolgirls and wealthy financiers.

Philippa Campsie teaches in the urban planning program at the University of Toronto and believes that urban planners need to get out and walk if they are going to understand any city. She and her husband visit Paris regularly and write about it on their blog, "Parisian Fields." Philippa has created tours in both Toronto and Paris.