Relaxing, causal rooftop in downtown Chiado.
Located in downtown Lisbon, this rooftop has a great city view. The way to get there is a bit tricky. It is behind the ruined castle, and one level down (Google map is misleading). Drinks and bites are good. However the sun disappears in early afternoon - not the best place for getting sun. I recommend go there on Friday or Saturday nights for the crowd and DJ.
Wish there's sun in the afternoon too...