Mist, research stations, and penguins are just a few of the things that define the South Shetland Islands, an archipelago off the coast of Antarctica. These 11 Antarctic islands, most notably King George Island, have served as a base for researchers from Chile, Argentina, and a variety of other countries. The archipelago has also become a popular cruise destination for tourists to the Antarctic region.

Tunis' white-washed, blue-shuttered buildings hide a treasure trove of Arabic and Ottoman art. Inspect illuminated manuscripts from the Koran, follow the twists and turns of the fascinating old Medina (inner city), marvel at the ornate Palace of Dar Ben Abduallah and the magnificent Djamaa-Ez-Zitouna Mosque, whose 184 columns were "recycled" from the rocky ruins of Carthage.

Whether it’s delving into naval history, enjoying panoramic views, or soaking in the coastal charm, Portsmouth offers an engaging and memorable experience for all who visit.

Hong Kong is one of the few places in the world where a 700-year-old fishing village sits minutes away from the headquarters of international banks. Once a British colony and now a Special Administrative Region of China, the city carries traces of Cantonese, colonial, and global influences in its streets, rituals, and food. The city has more than 300 hiking trails, including the well-known Lion Rock hike, which ends at a dramatic cliff overlooking Kowloon’s dense skyline.

Sagres sits at the southwestern edge of continental Europe in Portugal’s Algarve region, where the Atlantic’s wide horizon meets rugged cliffs and open skies. For centuries this point was linked to maritime adventure and visitors can still feel that sense of discovery in the air. Here, people like Prince Henry the Navigator gathered cartographers, shipbuilders and astronomers in the 1400s to push beyond maps of the known world and shape the early Age of Discovery from Sagres’ dramatic headlands.