Lisbon is an interesting Portuguese city to visit with its lovely streets and picturesque landscapes. A great way to see Lisboa is on the trolly. You can take the tram through the historic city centre, see some of its most famous buildings, etc.
The train, or trolley busses (trolebuses) as they are called here run from the Cathedral, through the neighborhoods of Belem, Tajo, the Plaza del Comercio, the Monestary of Los Geronimos, and other famous squares.
We recommend you take the number 28 trolley, that runs through Estrela, Alfama, and Bairro, passing through part of Baixa.