Lisbon is such a romantic city with its winding, cobblestoned alleys where you can stroll around during the day and where, in the evening, a good meal and a fado singer are never far away.
If you live in Europe, Lisbon is a great destination for a weekend get-away. Its size is manageable and especially in spring and autumn the temperature is very nice.
You can find my Lisboa tips, including my favorite food hotspots and healthy (vegetarian/vegan) restaurants here.