From grand castles to resplendent cathedrals, Tallinn’s Old Town neighborhood, a UNESCO World Heritage Site, is the perfect place to begin exploring. Enter through Viru Väravad, or Viru Gate, the former fortress whose remaining two towers beckon you into the heart of the city.

Set on the Adriatic Sea, Zadar, Croatia, is a major Dalmatia historical center and a tourism magnet. Walk ancient streets, see Roman ruins and enjoy white-sand beaches.

Busan is located on the southeastern coast of South Korea and is an exciting port city famous for its beaches, including Haeundae Beach, Gwangalli Beach, and Dadaepo Beach. From bustling marketplaces, to Buddhist temples, to Korean War memorials, Busan is brimming with culture and history and offers plenty to explore on your next visit to South Korea.

There's more than meets the eye in Savona, a Northwest Italy port city many cruise ship passengers are lucky enough to find themselves in. The giant Fortezza del Priamàr looms over the water, providing a unique welcome. Be sure to stroll through the city's genteel, impressive medieval center, visit the beautiful Savona Cathedral and see marvelous artistic works from centuries past at the Ceramics Museum.

Biarritz, located on the Basque coast of southwestern France, is a glamorous seaside city renowned for its picturesque beaches and rich history. Once a modest fishing village, Biarritz evolved into a luxurious resort destination favored by European royalty in the 19th century.