When you come from elswere in Portugal you can choose for the train. The major stations are station Santa Apalonia, Rossio and Oriente (near the expo terrains). To get to the stations of Santa apalonia and Oriente you can also take the Alfa Pendular(a kind of High speed train). The alfa pendular line starts in Porto > Aveiro > Coimbra > Oriente > Santa Apalonia. A ticket 2nd class Porta > Lisboa costs about € 60. If you come from out of Portugal you can take the plane (see portugal page).
Lisboa is a big city so you'll have to use the public transportation. The cheapest thing then is to buy a 'Lisboa card' for 24, 36 or 72 hours. With this card you can travel unlimited with the public transportation and you have a reduction in many museums.
There are several train-stations in Lisbon. In the picture you see the inside of the Rossio-station where trains from the north arive, which is in the center of the city. If you come from the west you probably arive at the Cais do Sodré railway station on the bank of the Tejo, not far from the center either. There are bus-services between the two stations. Number 14 is one of them.
In the travalogue 'Rossio' you can see another picture of this railway station. You can get to this travalogue by clicking this link.
Traveling Bilbao-Lisbon by train? In the summer? Then, get ready to sweat if you leep on bunk beds, especially if you sleep on the top ones! The experience is fun, I can guarantee that.
Besides that, I do recommend the train, it is cheap, you sleep quite well, and before you know it you're stepping into the Lisbon train station! (Don't forget the time zone is different).
Walking! No doubt. Also, don't forget to take one of those old trolleys that take you to the higher parts of the city.
The most important hub in Lisbon: Train, metro, bus, taxi. It was designed by the Spanish architect Santiago Calatrava.
Metro: Red line.
Cascais and Lisbon are connected by train with this line. Some other stops on this line are Estoril, Oeiras, Belém, Alcântara and the last station being Cais do Sodré in Lisbon
You can take the train to Sintra in Rossio Station (in the picture). You also have a train to Cascais near the river. And other stations take You to the rest of the country (S. Apolonia and 'Expo')