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.

Pisa, Italy, is more than just its world-famous Leaning Tower; it's a city where history, art, and culture intersect to create a fascinating experience for visitors. The Leaning Tower, part of the Piazza dei Miracoli or Square of Miracles, is an architectural wonder that draws millions each year. Built as a bell tower for the adjacent Pisa Cathedral, its unintended tilt has become a global icon.

Chuuk, one of the four states of the Federated States of Micronesia, is best known for its vast lagoon which is one of the largest enclosed lagoons in the world. But what sets Chuuk apart is what lies beneath those calm blue waters: an entire underwater fleet of sunken warships, aircraft, and submarines left from World War II. Often called the "Ghost Fleet of Truk Lagoon," these wrecks make Chuuk a global destination for experienced divers.

This coastal town in Montenegro is part of the World Heritage Site dubbed the Natural and Culturo-Historical Region of Kotor. It holds several summer events, such as the Summer Carnival or Bokeljska Noc. One of the most notable and charming aspects of the town is the large population of cats that have become a symbol of the city.

Sitka is accessible only by air or sea, giving visitors a real taste of this wild frontier. Sitka offers incredible scenery, fishing, hiking, and abundant wildlife. 22 of Sitka's buildings and monuments appear in the National Register of Historic Places.