To Mr. LauXu, To have a deep travel in Portugal, We were driving

for 28 days, unfortunately, we still missed some very beautiful historical sights. if just for Lisban, 3 days are good enough, More study on Portugal, more you will need times, Particularly, the south end of Portugal is the most beautiful coast and beaches, in the world. Also, around Porto, there are so many places to visit , ......toooooooo many places you will like to see in Portugal. Good luck.