As a city located in a Baltic Sea archipelago, it's not surprising that Stockholm has 50 bridges and sightseeing boats moving people between its 14 islands. This contemporary and welcoming capital of Sweden is nonetheless easily navigable by foot. Every district here has a distinct flavor, from the sophisticated Östermalm to the bustling downtown energy of Norrmalm to the delightful Old Town.

Honningsvag is a town on the north coast of Norway and the gateway to Nordkapp, or North Cape, which marks the northernmost point in Europe. This remote Norwegian destination is a popular stop for cruises to Northern Europe and the Arctic.

Novi Sad, Serbia’s second-largest city, sits along the banks of the Danube River and has long served as a cultural meeting point in the Balkans. Its centerpiece is Petrovaradin Fortress, a massive 18th-century stronghold nicknamed the "Gibraltar on the Danube." The fortress is known not just for its historic architecture but also for its network of underground tunnels and the iconic clock tower where the hands are reversed, meaning the large hand shows the hour.

Lalibela is the name of the township which King Lalibela, later canonized, ruled in the 12th century. At his command, eleven monolithic churches were hewn out of living rock. The churches are unique because they are not carved into rock but were freed from it entirely

Leiden or Leyden, city in the western Netherlands, in Zuid-Holland (South Holland) Province, on the Old Rhine River, near The Hague. Leiden is also the site of the State University of Leiden, one of the oldest and most distinguished universities in Europe. It was the birthplace of several important Dutch painters, including Rembrandt, Jan van Goyen, and Jan Steen. During the 17th century the English settlers who became known as the Pilgrims took refuge in Leiden before leaving for North America.