Golubac is a gateway to the Iron Gates Gorge, a stretch of the Danube River that separates the Carpathian and Balkan mountains.

Split, Croatia, is a city where ancient history and modern vibrancy blend seamlessly, creating an alluring destination for travelers. At the heart of Split is the UNESCO World Heritage Site of Diocletian's Palace, a remarkably well-preserved Roman complex built by Emperor Diocletian in the 4th century AD. This sprawling palace complex, with its labyrinthine streets, ancient walls, and grand Peristyle courtyard, is not just a historical site but a bustling part of the city’s daily life.

Dominica, known as the “Nature Island of the Caribbean,” is a haven for eco-tourists and adventure seekers. Nestled between the French islands of Guadeloupe and Martinique, this lush island boasts a remarkable landscape of volcanic mountains, dense rainforests, and stunning waterfalls. Dominica’s most iconic natural wonder is the Boiling Lake, the second-largest hot spring in the world.

Portland, Oregon, is a city where natural beauty and urban innovation coexist harmoniously. Nestled between the Columbia and Willamette Rivers and framed by volcanic mountains, Portland offers an array of outdoor adventures alongside its renowned cultural scene. Visitors can explore the lush expanses of Forest Park, one of the largest urban forests in the U.S., or take a leisurely stroll through the Portland Japanese Garden, which showcases exquisite traditional Japanese landscape design.

American Samoa consists of a group of seven islands in the southern Pacific Ocean, comprising Tutuila; the Manua group, consisting of Tau, Olosega, and Ofu; Aunuu; Rose Island; and Swains Island.