Given Ottawa's architectural beauty and the fact that parking is at a premium in the downtown core, one of the best ways to see the city is on foot. You'll need transportation to see the sights and museums located outside of the downtown area as well as Gatineau, however. Note that many museums are closed Monday, particularly in winter. Taxis can take you into Québec and back, but you'll have to get a local taxi to explore within each city of the province. Bus service is limited.