Wikipedia:"The first tramway in Lisbon entered service on 17 November 1873, as a horsecar line. On 30 August 1901, Lisbon's first electric tramway commenced operations. Within a year, all of the city's tramways had been converted to electric traction.
Up until 1959, the network of lines was further developed, and in that year it reached its greatest extent. At that time, there was a total of 27 tram lines in Lisbon, of which six operated as circle lines. As the circle lines operated in both clockwise and anticlockwise directions, each with its own route number, it is more correct to speak of a total of 24 tram routes, all of them running on 900 mm (2 ft 11 1⁄2 in) narrow gauge tram lines.
The construction of the Lisbon Metro began the slow decline of the network. Although reports prepared by both the École Polytechnique Fédérale de Lausanne and the Verkehrsbetriebe Zürich concluded that the network should be retained and even extended, the process of decline has continued. "
Capital, largest, and wealthiest city in Portugal and one of the leading economic centers on the Iberian Peninsula. Although located in the westernmost corner of Europe, the city is firmly embedded in the European Union, hosting a couple of EU agencies. Visit Baixa, the downtown city center and Alfama, the oldest district in the city or just chill out in one of Lisbon’s memorable parks – Parque Florestal de Monsanto, one of Europe’s largest urban parks or Parque Eduardo Vll, off the main drag. Last but not least, Lisbon plays host each September to the Lisbon Gay & Lesbian Film Festival - Queer Lisboa.