Lisbon is a city of hills – seven steep ones with winding streets and inspiring views. To reach the top, however, one need not ever break a sweat. Because every summit in town can be scaled by some sort of motorized transport. My favorite is the elevator....

Stockholm has a vivid nightlife. On weekdays it isn’t too crazy, but on weekends, the city awakes. Lots of restaurants transform into cocktail bars after dinner hours, so you can stay and hang out ‘till the wee hours. If you want to explore the nightlife...