Did you know you can travel for free on Lisbon Public Transportation?
I have wrote an article about the Lisboa Card, the cost and benefits of this card, and one of the biggest benefits is the free transportation in Lisbon. Either using the public bus service, trains, metro/underground, lifts, elevators or others, the cardholders of the Lisboa Card can enter freely and pay nothing to use this kind of transportation across the city.
It’s quite useful, specially if you like to move a lot when visiting a place. The card has a cost of just 18,50EUR and you can use it infinite times across the day, beside the other benefits I have shown in the given article