Trieste and its outskirts are well-covered by an extensive network of some 50 bus lines that ply seemingly every street, from major thoroughfares to impossibly narrow lanes with double parked cars in the historic centre. That said, the city and most major tourist sights can easily be covered on foot, depending on the weather of course. A single tramway line also makes the slow scenic journey from Piazza Oberdan all the way up to Villa Opicina in the hills overlooking the sea, still using the restored original tram cars from 1935.