Lisbon is a city of seven hills tumbling down to the Tagus River, where pastel facades wear hand-painted azulejo tiles and rickety yellow trams grind up impossibly steep lanes. It is one of Europe's oldest cities, older than Rome, rebuilt with bold geometry after the catastrophic 1755 earthquake, and shaped by centuries of seafaring during Portugal's Age of Discovery.

The draws are easy to love: soulful fado music in candlelit Alfama taverns, custard tarts still warm from the oven, riverside monasteries carved in honey-colored stone, and the dreamlike palaces of Sintra just up the hill. Food is a highlight in its own right, from grilled sardines and bacalhau to fresh seafood and crisp vinho verde, and prices remain gentle by Western European standards.

Getting around is straightforward: the metro, trams, and funiculars cover the center, walking handles the rest (wear good shoes for the cobbles), and trains to Sintra and Belem are cheap and frequent. Spring and early autumn bring the kindest weather, while summer is warm, busy, and lively. Four days is enough to see the essential city and still escape for one magical day in the hills.