Oozing history (almost every corner fosters a castle or a UNESCO World Heritage Site), this European city is something of a catchall for new couples. A stone's throw from both seaside resorts and wineries, it's a great choice for those working on a variety of budgets. Popular with young creatives - and the nouveau riche (the Fassbenders have recently set-up shop here) - it's easy to be romanced by this city. With a burgeoning contemporary food scene and inbuilt cardio thanks to the city's hilly landscape it's hard to find fault with this weekend escape. When you've had your fill of pastel de natas (traditional custard tarts), romantic tram rides and photo-worthy vistas, rent a car and head west for the seaside town of Cascais.