Located in northwest Italy’s Lombardy region, the province of Bergamo offers more than just a day-trip diversion from the big city of Milan. This hilltop town is known for its architectural gems, including medieval and Renaissance structures that continue to amaze tourists and locals alike. Don’t miss the historic Piazza Vecchia with its 12th and 16th century buildings. And Bergamo’s Galleria dell’Accademia Carrara is an art gallery featuring works from Italian legends including Botticelli, Titian, Canaletto and Raphael, to name a few.

Billing itself as one of Denmark's friendliest towns, Kolding certainly appears welcoming—its streets lined with cherry red Danish flags that seem to be constantly waving hello. A medieval castle towers over vibrant parks that bloom with flowers and medicinal spices. On balmy days families will be grateful for SlotssøBadet, an extraordinary waterpark that's a blast for all ages.

Jutland's south offers a slew of seafaring towns. Don't miss charming Ribe, home to flotillas of nesting storks. Fjords, dunes and islands await on its fringes, while moors and marshes stretch across its interior. The south is an idyllic spot for cycling. Rolling hills, heath and heather feature in central Jutland. Endless white sand beaches line the coasts. To the north, the windy North Sea coast is home to beech forests, lovely beaches and beautiful light and is loved by surfers and artists.

The Cyclades are a group of Greek islands with beautiful, white sandy beaches, rugged mountains and lush valleys. Glamorous Santorini and Mykonos attract the jetset, while lesser-known islands such as Milos and Naxos, are perfect for beach lovers. Ruins, including the 11th-century Dorian settlement and volcanic ash-preserved ancient Akrotiri in Santorini, amaze those with a bent for ancient history. Sifnos' cuisine wins it admirers. Hydrofoils, ferries and catamarans connect the islands.

Founded in the mid-17th century as a winter quarters for traders and tax collectors, Irkutsk came to prominence in the 1800s. Participants in the Decembrist revolt against Tsar Nicholas I were exiled to Siberia in droves, turning Irkutsk into their cultural center. Today, it’s one of Siberia’s biggest and most important cities, with over half a million people, many universities, many historic churches and museums, and beautiful Lake Baikal, just about an hour away by train.