Lisbon's trams and metro
The metro is modern and efficient. The iconic Tram 28 is a tourist attraction but locals use it too — just avoid peak tourist hours. Viva Viagem card works on metro, bus, tram, and ferries.
Tip: Tram 28 pickpockets are legendary. Keep valuables in front pockets or skip it and walk the same route — it's a beautiful hike.