Dynamic Barcelona is all about architecture, from the magnificent medieval buildings of the Gothic Quarter to the Modernist movement typified by the work of Antoni Gaudi. Though his materials were stone and metal, his forms were organic, awash in curves, swirls, and colors. His masterpiece is the amazing Church of the Sagrada Familia, colossal and as yet unfinished, though construction began in 1882. A contemporary contribution to the scene is Ricardo Bofill's post modernist National Theater of Catalonia, an imaginative combination of classical and modern design, with a greenhouse-like lobby.

Marseille, a port city in southern France, has been a crossroads of immigration and trade since its founding by the Greeks circa 600 B.C. At its heart is the Vieux-Port (Old Port), where fishmongers sell their catch along the boat-lined quay. Basilique Notre-Dame-de-la-Garde is a Romanesque-Byzantine church. Modern landmarks include Le Corbusier’s influential Cité Radieuse complex and Zaha Hadid’s CMA CGM Tower.

The tiny principality of Monaco, a sovereign state of just under one square mile, has an outsized resume, boasting some of the planet's most expensive real estate, and the world's most prestigious casino. Facing the sea, and engulfed on the other three sides by France, it has been the domain of the Grimaldi dynasty since the 14th century, and enjoys the same glamorous reputation as the rest of the Riviera.

Ah, Florence—sublime birthplace of the Renaissance, its historic center full to bursting with elegant squares, imposing palaces, magnificent churches, and museums with such an abundance of riches it could make an art lover weep for joy. The list of illustrious names connected with this city is mind-boggling: Botticelli, Dante, Da Vinci, Michelangelo, Galileo. Other colorful and fascinating characters were of dubious reputation: Machiavelli, and the religious extremist Savonarola, with his bonfire of the vanities. For many years the city was ruled by the powerful Medici family, patrons of the arts and bankers to the papacy, whose line included six kings and two popes.

Rome has something special to offer to all visitors, no matter their interests and tastes. Whether you daydream about fighting with gladiators in the Coliseum, debating with togaed senators in the Forum, tossing a coin in a fabled fountain, or being awestruck by the magnificence of St Peter’s Basilica and Michelangelo’s masterpieces, Rome seems to live up to its sobriquet – the Eternal City. When you need sustenance, today’s Rome will provide delizioso pasta e vino. Or perhaps you draw strength from a little retail therapy – the Italians are also renowned for their sense of style.

A warming sun and gentle sea breezes have been attracting visitors to this fair spot for two millennia. Its reputation as a playground of the ancient rich and famous resulted in the building of lavish villas and palaces, an emperor relocated to the Isle of Capri nearby, and over the centuries it has been a haven for artists and artisans, writers and poets, politicians and philosophers, and all manner of aristocrats. You will be a welcome addition. The massive eruption of nearby Vesuvius in 79 AD caused considerable damage, but the resulting volcanic ash is responsible for Sorrento’s modern day fertility, thriving olive orchards, and excellent wine.

Between the Mediterranean Sea and Mount Etna lies the beautiful city of Catania, where it’s “if it ain’t Baroque don’t fix it” architecture has earned it UNESCO World Heritage status. Along with flamboyantly designed buildings, Catania is home to many ancient sites, like the Odeon and Amphitheatre—unearthed from under Mount Etna’s lava that covered the city at least seven times. These ruins can be viewed in the archaeological park, in the compact (AKA great for walking) city center.

The Port of Crotone is a small port in Italy. Crotone, with its old town and the Castel of Charles V. Santa Severina, named among the most beautiful Italian places in italy.

Kotor’s beautiful bay has long attracted passing ships that stopped to trade, plunder, or conquer, and merchants, pirates, and soldiers of numerous empires have walked this maze of cobblestone streets before you. One of Europe’s best-preserved cities of medieval or Renaissance vintage, its walls were constructed right into the steep slopes of the mountain behind it, providing protection and making it an amazing sight on approach from the sea. Venetian ramparts enclose a rich history, with churches of varying styles, and a Romanesque cathedral built on the foundations of an earlier church, and a still earlier Roman temple.

A key commercial center with a Venetian past, Koper is Slovenia's only deep-water port. Stroll the narrow streets of the "old city" to the Praetorian Palace, which could easily be the setting of a Renaissance drama, sip a coffee in the square, then visit the Cathedral of St. Nazarius, the largest in Slovenia.