Lisbon Portugal Tourist Information and Vacation Guide
Several companies currently offer hop-on hop-off bus tours of Lisbon. Tickets can be purchased for either one or two days and are quite inexpensive.
Each company operates multiple routes. The main terminal is located at the north end of Avenida Liberdade, the tree-lined boulevard that runs north from the Baixa district.
Another terminal for "hoho buses" can be found in the large riverfront square (Praca do Comercio) in the Baixa district.