The Iron Gates, a dramatic gorge along the Danube River, is a spectacular natural wonder straddling the border between Romania and Serbia. This striking geological formation carves its way through the Carpathian Mountains, creating breathtaking views that captivate all who visit.

Papua New Guinea is made up of the eastern half of the island of New Guinea, called the mainland. Papua New Guinea is bounded on the north by the Bismarck Sea; on the east by the Solomon Sea; on the south by the Coral Sea, the Gulf of Papua, and the Torres Strait; and on the west by the Indonesian province of Irian Jaya.

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.

Nunavut comprises a major portion of Northern Canada, and most of the Canadian Arctic Archipelago. Its vast territory makes it the fifth-largest country subdivision in the world, as well as the largest in North America.

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.