St. Catherine's Monastery, nestled at the foot of Mount Sinai in Egypt, is a beacon of historical and spiritual significance. Founded in the 6th century by Emperor Justinian, this ancient monastery is one of the world's oldest continuously operating Christian monasteries and is a UNESCO World Heritage Site.

Cameroon is often called “Africa in miniature” for good reason. Within its borders, travelers can explore coastal beaches, dense rainforests, vast savannas, active volcanoes, and snow-capped peaks, all without crossing a border. The country’s most iconic landmark, Mount Cameroon, is the highest mountain in West Africa and an active volcano that draws hikers from around the world.

Cabo Rojo, located on the southwestern coast of Puerto Rico, is a region of striking natural contrasts where salt flats, mangroves, and limestone cliffs meet the sparkling Caribbean Sea. Its most iconic feature is the Cabo Rojo Lighthouse perched on dramatic cliffs overlooking the ocean, offering panoramic views of turquoise waters and nearby beaches.

Kẻ Bàng National Park lies in central Vietnam, near the border with Laos, and is known for its vast network of limestone mountains and underground rivers. The park forms part of one of the oldest karst landscapes in Asia, shaped over millions of years into a maze of caves, cliffs, and dense forest. Among its most famous features is Sơn Đoòng Cave, recognized as the largest cave on Earth, with sections so vast that clouds can form inside and a jungle grows beneath its collapsed roof.

Killington, Vermont is best known for its ski resort, the largest in the eastern United States, but the town offers more than just winter slopes. Nicknamed “The Beast of the East,” Killington Resort spans six mountain peaks and includes over 1,500 acres of terrain. It was one of the first ski areas in the country to adopt snowmaking technology in the 1960s, and it continues to operate one of the longest ski seasons in North America, sometimes stretching from October into May.