Steeped in old-world charm, the cosmopolitan capital of Portugal, known as the City of Seven Hills (so bring your walking shoes), delights with an allure that you won't find elsewhere in Europe. With centuries-old street cars, quaint cafes, hilltop castles, and the time capsule that is the Alfama District, where grandmothers sell Ginja D'Alfama on the roadside, truly, a visit to Lisbon feels like a trip back in time. On the one hand, Lisbon is a city rich in history, culture, and traditions — from the sounds of Fado ringing through the streets to multiple-century-old castles overlooking its districts, it's