Sometime around 300 A.D., Roman Emperor Diocletian built his retirement palace on one of the loveliest spots on the Adriatic Sea. Today his palace has become a UNESCO World Heritage Site in the heart of Split, the city that grew up around it. Split is now Croatia‘s second largest city, and much of it sits on a beautiful peninsula on the island of Ciovo, a jewel on the Dalmatian Coast. Many intriguing relics from the Roman, Greek colonial and Medieval periods can be found in Split‘s archaeological museum, which was founded in 1820, making it Croatia‘s oldest museum. One of the top outdoor attractions is the green oasis of Marjan Forest Park with its Split Zoo. There are also plenty of fine beaches nearby.

Kotor is a beautiful walled medieval city of twisting, pink-paved streets, markets and architecture reflecting Byzantine to Venetian influences. Stroll through the compact old town, admire the impressive walls and tour the imposing St. Tryphon Cathedral, consecrated in 1166.

Immerse yourself in this island of glorious scenery and beaches, serene monasteries, beautiful palaces, traditional mountain towns and Corfu‘s lovely old Venetian quarter. Or visit the ornate Achilleion Palace, built by Empress Sissi of Austria and filled with dramatic sculptures of the Greek hero Achilles.

Visit beautiful Taormina and marvel at its famous Greek theater and the stunning view of Mount Etna. Explore lovely medieval Messina with its historic churches and the cathedral where it is rumored Richard the Lionheart worshipped in 1190. Or discover ancient Tyndaris, founded in 396 B.C., with its fine mosaics, Roman baths and impressive theater overlooking the sea.

Salerno is a port city southeast of Naples, in Italy. Atop Monte Bonadies, the centuries-old Arechi Castle has sea views, plus Museo Medievale del Castello, exhibiting medieval ceramics and coins. In town, built on the ruins of a Roman temple, is Salerno Cathedral. It has Byzantine bronze doors, a baroque crypt and a marble altar. The terraced Minerva’s Garden has been growing medicinal plants since the 14th century.

Travel to Rome and revel in the magnificent monuments, from the ancient Roman Forum and Coliseum to the splendor of St. Peter‘s Basilica with Michelangelo‘s Pietà and his breathtaking frescoes in the Sistine Chapel. Or enjoy a drive through the lush farmlands of the Roman countryside to lovely medieval Castelgandolfo.

Head out of town and discover the five stunning, colorful towns clinging to the cliffs along the coast. Hike along the trail connecting them or take a boat tour and see them from the water as ancient seafarers did. Go ashore and explore a picturesque town and its castle. Or visit intriguing Portovenere, another colorful town rising above one end of La Spezia‘s harbor with breathtaking views and the lovely Church of San Pietro.

Lying on a natural harbor on the French Riviera, Toulon is France‘s principal naval base, and the waterfront is always full of life. Designed around stately fountains and small squares, the Old City is tucked between the harbor and boulevard de Strasbourg, and its Cathédrale Saint-Marie-Majeure is noteworthy for its Romanesque architecture. The city is also rich in history, much of it on display in the marine museum and the Museum of Toulon, celebrated for its Provençal paintings. For the ultimate view of Toulon, ride the cable car to Mount Faron.

The City of Arts and Sciences is an impressive collection of attractions, including an opera house and performing arts center, IMAX cinema, planetarium, science museum and oceanographic park. Visit the Gothic city of Requena, featuring perfectly preserved 100-year-old wine cellars. In Lladró‘s City of Porcelain museum, explore the production facilities, or nearby visit the National Ceramics Museum, located in the former palace of nobility.

This walled city has always been a major naval port due to its natural harbor and strategic location. Enjoy a hilltop view from Concepción Castle, which served as a fortress for the Carthaginians, Romans and other peoples who once occupied the city. Visit the 1st century B.C. Roman Theater, the remains of the 13th century Cathedral of Santa Maria and the Naval Museum. For modernist architecture, see the City Hall, Grand Hotel and Casino.

Marvel at the sumptuous palaces, lush gardens and imposing citadels that are the Alhambra. This UNESCO World Heritage Site is one of the most famous legacies of Moorish rule in Spain. Meander the narrow cobblestone streets of nearby Albaicín, the ancient Arabic quarter, or see a flamenco performance in the whitewashed caves of Sacromonte, originally settled by gypsies.

Go to the top of the Rock and admire the view across the Mediterranean and up the peninsula into Spain. Feed peanuts to the famed Barbary Apes and visit St. Michael‘s Cave, a fascinating cavern once lived in by Neolithic peoples and visited by early Romans. See the quaint fishing village along the coast and enjoy the colorful town. Shopping: Browse through shops filled with lovely embroidered linens from Madeira. Dining: Enjoy some traditional fish and chips with a beer or just relax in a café and watch the passing parade.

Spend a fabulous day in Seville visiting the magnificent cathedral, climbing the famed Giralda Tower and strolling through the gorgeous Alcazar and its gardens. See the ceramic-encrusted Plaza de España and stroll through the alleys of Barrio de Santa Cruz. Or explore the Andalusian wine country and Jerez, the home of sherry. Don‘t miss the charm of Cádiz with its gracious squares, its flower-filled parks on the city bastions and its bustling markets.

Spend a fabulous day in Seville visiting the magnificent cathedral, climbing the famed Giralda Tower and strolling through the gorgeous Alcazar and its gardens. See the ceramic-encrusted Plaza de España and stroll through the alleys of Barrio de Santa Cruz. Or explore the Andalusian wine country and Jerez, the home of sherry. Don‘t miss the charm of Cádiz with its gracious squares, its flower-filled parks on the city bastions and its bustling markets.

Situated on the sun-kissed coastline of Algarve, Portimão is a colorful city with a bustling waterfront and a charming city center decorated with parks and plazas. The Museum of Portimão traces the history of human settlement in the area as far back as the Roman and Islamic periods. Enjoy beautiful views and explore hidden caves on a scenic boat trip up the coast and along the Rio Arade.

Visit the ornate Belem Tower and Jeronimos Monastery and stroll the narrow, winding streets of the charming Alfama district. Enjoy marvelous old Sintra, a royal country retreat, and Cascais, a beautiful seaside resort. Explore medieval Obidos or make a pilgrimage to Fatima, where the Virgin Mary appeared repeatedly to three shepherd children in 1917.

Explore picturesque, historic Oporto and the Vila Nova de Gaia quarter, home of its famed port wine industry. Or discover Portugal‘s scenic countryside and visit Guimaraes with its impressive medieval castle and beautiful Braga with its Bom Jesus Shrine and superb cathedral.

A UNESCO World Heritage Site, Santiago de Compostela has been an important pilgrimage center for Christians since the 800s, when the tomb of the apostle James was believed to have been found by a hermit, guided to it by a bright light. Centuries of building and subsequent preservation efforts have maintained a range of extraordinary architecture in the Old Town, including Romanesque, Gothic, Renaissance, Baroque and Neoclassical styles. Also home to a large university, the city has numerous places to shop, eat, drink and enjoy local entertainment.

See the famed Tower of Hercules, the still working 2nd century Roman lighthouse, and wander through this historic town of fine churches, old palaces, cobbled streets and unique fishermen‘s houses. Or spend the day in beautiful Santiago de Compostela, an important pilgrimage site renowned for its magnificent cathedral and superb architectural and cultural heritage.

Bilbao is a charming city both modern and dynamic while at the same time, with its 700 years of history, it is quite traditional as well. Enjoy a walk around the Old Quarter, the most popular area of the city. Here you will see the Teatro Arriaga; el Arenal, the old stevedoring port and today one of the favorite promenades of the citizens of Bilbao; the San Nicholas Church; and the Cathedral of Santiago along with its cloister, Plaza Nueva. No visit to Bilbao would be complete without a visit to the architecturally stunning Guggenheim Museum, which is in and of itself a work of art.

Tucked in France‘s Côte Basque, Biarritz first came to prominence in the mid-19th century when Napoleon III built a summer palace here for his wife, Empress Eugenie. The oceanside palace is now the esteemed Hotel du Palais, a landmark for the dynamic, beach-rimmed Biarritz. Surfing in France originated here in the late 1950s, and the sport has become synonymous with the city. You might watch surfers riding the waves that funnel into the Bay of Biscay, or simply comb the lovely beaches. Biarritz also has an urbane personality and museums dedicated to everything from Asian art to chocolate. Don‘t miss the blue-domed Russian Orthodox church, built for visiting Russian aristocrats in the 19th century.

Enjoy the city‘s visual feast of wonderful ornate buildings, broad avenues, marvelous squares and the Cathedral of St. André, where Eleanor of Aquitaine married Louis VII. Stroll through Old Bordeaux. Then visit the area‘s fabulous vineyards and magnificent châteaux and delight in tasting their superb wines.

Strategically located near the western tip of the Breton peninsula, this naval port has a rich military history. Among its landmarks are the heavily fortified Chateau de Brest and the rotund, 14th-century Tour Tanguy tower. It contains a fascinating museum with dioramas depicting Brest on the eve of World War II. The city‘s Oceanopolis, one of Europe‘s largest marine complexes, presents more than 1,000 different species. Brest is also known for its National Botanical Reserve, which focuses on endangered plants rarely found elsewhere.

Enjoy this charming port, its beautiful harbor, architecture and imposing castle. See the rugged countryside and take a walk along the extraordinary cliffs and down to the sea, where Renoir once admired the view. Or savor the landscape in a drive around the island past grazing Guernsey cows in rich pastures. Then visit artisans working with silver and gold. Learn about the German occupation during WWII, or tour Victor Hugo‘s house and absorb the spectacular view. Stroll through the lovely Candie Gardens on this island known for its flowers.

Take a trip up to London and get a bird’s eye view of the city from the London Eye. See sights like Parliament, Westminster Abbey and Piccadilly. Stroll along Lower Regent Street or visit the British Museum.

The coastal suburb of Dún Laoghaire is popular for strolls on the East Pier, and locally caught fish and chips. The National Maritime Museum of Ireland has nautical art and artefacts inside a 19th-century sailors’ church, while the harbour is a busy hub for fishing, water sports and cruises. Nearby Sandycove is home to the James Joyce Tower and Museum, as well as the sheltered beach and bathing spot at Forty Foot.

One of the oldest continuously inhabited places in Ireland, Londonderry traces its roots to the 6th century. Walls from the 17th century still fortify the city center where you will find St. Columb’s Cathedral, built in 1633. Take a stroll across the River Foyle on the newly constructed Peace Bridge, or enjoy gorgeous views of the Irish countryside on a visit to the Sperrin Mountains. The geological marvel known as the Giant’s Causeway lies just east of the city.

Discover this fascinating land where the forces of nature hold sway as you visit the modern capital with its thermally heated outdoor swimming pool, remarkable botanic gardens and folk museum. Explore the starkly beautiful countryside of lava formations, glaciers and incredible waterfalls and the site where the first parliament sat in 930 A.D.

Although remotely located in northwest Iceland and surrounded by ruggedly beautiful fjords, Isafjordur is surprisingly cosmopolitan. The capital of the Westfjords has long been a cultured oasis in the midst of this haunting beauty, fueled by the rewards of being one of Iceland‘s largest fishing centers. The first merchants lived in wooden houses now preserved in the Neöstikaupstaöur section of town, which is alive with shops and restaurants. Two museums are of particular interest – the West Fjords Folk Museum for tools and heritage items and the Maritime Museum for a look at the 19th century fishing industry.

Historic Sydney boasts several landmarks from the late 1700s, such as the colonial Cossit House and the Jost House, which features an unusual beehive bake-oven. St. Patrick‘s, the city‘s oldest Catholic Church, doubles as a fascinating museum.

Founded by the British in 1749, Halifax still has a British military air about it. Every day at noon, a ceremonial gun is fired at the Halifax Citadel, a star-shaped fortress where the guides wear military uniforms. The exhibits have a more seafaring slant at the Maritime Museum of the Atlantic and include the nearly 100-year-old Acadia.

The Big Apple. The City That Never Sleeps. Call it what you may, New York reigns as one of the world‘s most dynamic cities. But where to begin? The sacred soil of Ground Zero or stunning Central Park? The Guggenheim or the American Museum of Natural History? Should you take in a Broadway show or simply enjoy the nonstop show of people that parade through the streets? The possibilities are endless in the five boroughs of New York City, so get out and enjoy.