Progreso boasts the world's longest pier, which juts nearly five miles into the Gulf of Mexico and anchors to the oceanfront amidst a gorgeous beach with a promenade that itself stretches a mile. Standing sentry over it all is the 120-foot Faro de Progreso, an active lighthouse built in 1893. Progreso has a beach-town vibe, and the center is easily explored on foot. At the biological reserve of El Corchito, observe lush flora and fauna and take a dip in one of the Yucatán’s famous cenotes – collapsed caverns that created freshwater swimming holes.

This postcard-perfect destination, with its pastel-colored houses encircling the port, may be one of the most photographed in all of Italy. If you can take your eyes off the scenery, there is much to explore in and around Portofino. The 12th-century Church of St. George and the medieval Castello Brown both afford spectacular views of the harbor. A long, scenic hike or a short boat ride takes you to the restored 11th-century abbey in San Fruttuoso. Northwest of Portofino lies Genoa, filled with museums, palaces and the grand Cathedral of San Lorenzo.

Established in 1633 as a fishing village, Portland grew to become not only the largest tonnage seaport in New England but also a charming destination of cobblestone streets, delectable seafood and history galore. The Old Port district is the center of it all with its restored brick warehouses bustling with shops, galleries, cafés, bars, and restaurants serving the freshest possible lobster. The Portland Museum of Art showcases works by Homer, Picasso, Matisse, Monet and more, while the views of the city from Portland Observatory are a work of art in their own right.

For nearly 400 years, the Netherlands and France have shared the island known as St. Maarten on the Dutch side and St. Martin on the French. Home to 37 beaches and an array of tropical experiences, the island’s dual cultural profile sets it apart from other Caribbean destinations. Philipsburg, the capital of the Dutch side, is a bustling port with a lively waterfront, colorful shopping district, casinos, and restaurants serving international fare. Water sports, like sailing, and rainforest explorations are all within easy reach of its docks.

The capital of the Balearic Islands, beautiful Palma is famous for La Seu, the massive Cathedral of Santa Maria overlooking the bay. The adjacent Alumdaina Palace has been a royal residence since the 14th century, and the Gothic-style Bellver Castle houses the city's history museum. The Juan March Foundation Museum boasts a permanent collection of 70 works by the most important Spanish vanguard artists of the 20th century.