When Sofia and Carlos travelled to Lisbon, they thought they were simply spending a few days exploring one of Europe's most beautiful cities. What Sofia didn't know was that Carlos had secretly planned a surprise proposal at Miradouro de Santa Luzia, one of Lisbon's most iconic viewpoints.

Jeff and Ali travelled from the United States to spend a few days exploring Lisbon. What Ali didn't know was that Jeff had secretly packed an engagement ring and was planning a surprise proposal at Castelo de São Jorge.