Guayaquil, Ecuador, is a vibrant port city and a frequent starting point for cruises to the Galapagos Islands.

This city is the last stop on one of the busiest artificial waterways in the world, the Kiel Canal. It is an important base for the German Navy and famous for its international sailing event, the "Kieler Woche", an annual sailing event that attracts millions of people around the world.

Say "Aloha!" to the big city on Oahu's South Shore: Honolulu. This sunny capital city is the main portal to the larger Hawaiian archipelago, and the perfect base for exploring Oahu.

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.

Abruzzo, a hidden gem in central Italy, offers travelers a captivating blend of medieval history, stunning natural landscapes, and authentic Italian charm. Known as "the greenest region in Europe," Abruzzo is home to three national parks, including Gran Sasso e Monti della Laga, which features some of the highest peaks in the Apennines.

A southeastern seaport, Waterford is Ireland's oldest city. Visitors often tour the popular Waterford Crystal factory.