Bilingual walking tours are available for more than a dozen different itineraries. The latest and greatest are the Portsmouth Village walking tour and the Life and Labour in the Inner Harbour tour which covers the architectural histories of those neighbourhoods.
Most of the tours cover tight areas of the city, communicating their pasts in depth. Yet, most of the tours can be done in under an hour. There is a downloadable app associated with the tours, see the website for more info.