The city of Porto, Portugal has many historic buildings, but for fans of transport history, the three remaining lines of the Porto Tram System are a thing of wonder. The Porto Tram Museum is located by the Duoro River and houses several overhead electric-powered streetcars (and some horse-drawn examples), but the fact that these historic vehicles still provide a public service in the city is a tribute to their craftsmanship. Very much like the San Francisco cable cars, they are both a tourist attraction and a means of transportation around…
