Cruising Southern Spain and Portugal – with Smithsonian Journeys

Barcelona is the city where Roman history, Gothic grandeur, and Gaudí's delirious Modernisme collide in a Mediterranean coastal capital of astonishing energy and beauty. The Sagrada Família — still under construction after 140 years — continues its audacious ascent toward completion, while the Gothic Quarter's Roman-era foundations and the Passeig de Gràcia's extraordinary concentration of Modernisme masterpieces reward days of exploration. For a complete sensory experience, lose an afternoon in the covered labyrinth of La Boqueria market before descending to the waterfront for Catalan seafood at its finest. May through June and September through October offer the most pleasant weather; the city connects directly to Paris by overnight train.

Palma de Mallorca announces itself with one of the most spectacular Gothic cathedrals in the world — La Seu, its honey-coloured sandstone buttresses rising directly from the bay, its interior modified by Antoni Gaudí and illuminated by the world's largest Gothic rose window. The old town behind it is a quarter of Arab baths, Renaissance palaces converted into boutique hotels, and the Passeig del Born — a plane-tree-shaded promenade where Balearic life conducts itself with unhurried grace. The local ensaïmada pastry and fresh sobrasada sausage from the island's black pigs are essential breakfast rituals. Visit May, June, or September: warm, brilliant, and measurably calmer than the July–August peak.

Valencia, Spain's luminous third city, dazzles with a creative energy anchored by two thousand years of layered civilization — Roman foundations, Moorish irrigation gardens, a Gothic cathedral housing what many believe to be the Holy Grail, and Santiago Calatrava's futuristic City of Arts and Sciences gleaming beside a park-filled riverbed. The city invented paella over an open fire of orange-wood in the surrounding huerta, and the Las Fallas festival each March — when neighborhoods compete to erect and then ceremonially burn towering satirical sculptures — is one of Europe's most spectacular celebrations. Valencia's Mediterranean climate makes it exceptional year-round.

Málaga distils three thousand years of Mediterranean civilisation into one of Andalusia's most compelling port cities, where the Moorish Alcazaba fortress surveys a modern waterfront of elegant promenades and sun-drenched café terraces. Do not leave without visiting the Museo Picasso — the artist was born here in 1881 — and ascending to the ruined Castillo de Gibralfaro for panoramic views stretching to the Rif Mountains of Morocco on clear days. Malagueta anchovies fried in olive oil and the sweet Pedro Ximénez-laced dessert wine are the city's defining pleasures. The shoulder seasons of April, May, and October offer perfect Mediterranean warmth.

Cádiz, founded by Phoenician traders around 1100 BC and a strong contender for the oldest continuously inhabited city in Western Europe, juts into the Atlantic on a narrow peninsula where honey-colored ramparts frame improbable views of open ocean and the sun sets directly into the sea. The old quarter is an intoxicating labyrinth of baroque churches, hidden plazas, and carnival spirit — Cádiz's annual February carnival is the wildest and most satirically sharp in Spain — while the tapas culture here, centered on fresh Atlantic seafood cooked with Andalusian simplicity, represents Spanish cuisine at its most elemental and joyful. Visit February for carnival or spring for gentle Atlantic breezes. Seville is ninety minutes inland by bus or rail.

Portimão is the Algarve's most storied port city, where Phoenician trading heritage meets golden-cliff beaches and Portugal's finest grilled sardine tradition along the Arade River. Visitors should not miss the charcoal-grilled sardines at the riverside churrasqueiras and the dramatic sandstone formations of Praia da Rocha. The port is at its luminous best from May through October, when long Atlantic days bathe the coastline in honeyed light and the August Sardine Festival electrifies the waterfront.

Lisbon, Portugal's enchanting capital, stands out for its rich history, stunning architecture, and vibrant culture. Must-try experiences include savoring local dishes like bacalhau à brás and pastéis de nata at Mercado da Ribeira. The best time to visit is during the spring or fall, when the weather is mild and the city is alive with festivals and events.