Sorry there are lots of information about 1.5-2.5 days stays in Lisbon but for only one afternoon (about 5hours)? We thought to take a taxi to and from airport (about EUR10 each way) (leaving suitcases in left luggage at the aiport which I have already investigated) and then take tram #28 and also see the Castle as a priority number 1? A lot of the forums talk about seeing the view and walking around the squares but unfortunately this trip we do not have time. Any feedback about where the taxi should leave us to maximise our afternoon or what we could see in the very limited time would be appreciated. Thankyou.