so much in Lisbon and close area. I go often as my wife is from there.
Go to the Expo site, some lovely architecture there and you can connect with the Ocenarium while you are there.
Get out to Sintra and see the Palace and old castle grounds...pretty spectacular and a short drive south of Lisbon.
St Georges Castle in Lisbon is also pretty cool as wellas the surrounding area...lots to see.
Municipal square, lots of history. (Praca do Municipal)
Rua Augusta...beautiful pedestrian area
Camoes Square
Restauradores Square
Discoveries Monument and area...very cool...
Lisbon Aqueduct
sooooooooooooo much to see...it is a lovely city with MUCH to offer in and around the area. Go to the beaches...some of the most spectacular beaches in the world.
PM me if you want more info.