The Rough Guides concluded some time ago that the top of their 10 sights for
Lisbon was to ride the 28 tram. The description started "Avoid guided
tours".
Ahem! bg

Not done Lisbon yet but I know a fair bit about the tram system and
it's clearly an experience not to be missed - despite the modernisation
and upgrading that is going on.
The 12 and even more so the 28 are truly, truly amazing experiences. Any
lover of trams must make the pilgrimage to Lisbon. I've not done it
for some years but we fully intend to go back in the not-too-distant
future, all being well.

As an aside, it's a truly delightful delightful City anyway.

--
Ian Jelf, MITG
Birmingham, UK

Registered Blue Badge Tourist Guide for London and the Heart of England
http://www.bluebadge.demon.co.uk