Londonderry, often called Derry, is a city steeped in history and charm, uniquely surrounded by remarkably well-preserved 17th-century walls. In fact, it holds the title of being the only completely walled city in all of Ireland. Strolling along these ancient ramparts offers visitors not only a glimpse into the past but also breathtaking panoramic views of the winding River Foyle and the lively streets below.

Ishigaki, the vibrant hub of the Yaeyama Islands in Japan, is a tropical paradise renowned for its stunning natural beauty and unique cultural heritage. As the largest island in the Yaeyama group, Ishigaki is celebrated for its breathtaking beaches and crystal-clear waters, such as the pristine Kabira Bay, famous for its turquoise hues and coral reefs.

This coastal route runs between the Gulf of Alaska and Puget Sound, and is a popular route for cruise ships. Cruise passengers can expect to see a breathtaking amount of wildlife, as well as Ketchikan, Wrangell, Prince of Wales, Sitka, Juneau, Haines, Skagway and Glacier Bay.

Ol Doinyo Lengai, often called the "Mountain of God," is an active volcano located in northern Tanzania and is a must-visit for adventurous travelers. Towering over the Great Rift Valley, this majestic peak is unique due to its lava composition. Unlike most volcanoes that produce molten lava, Ol Doinyo Lengai emits natrocarbonatite lava, which is unusually cool and flows like water. This rare phenomenon makes it one of the most intriguing volcanic landscapes on Earth.

Glastonbury, a town in Somerset, England, is steeped in mysticism and historical allure. Known for its rich Arthurian legends and spiritual significance, Glastonbury is a must-visit for those fascinated by mythology and history. The town’s centerpiece is the majestic Glastonbury Abbey, a grand ruin once one of the most powerful monasteries in England. Founded in the 7th century, the Abbey is famously linked to the legend of King Arthur and his supposed final resting place.