ABERDEEN -- Scotland's third-largest city (pop. 187,000) is characterized by buildings of beautiful white granite. Set beside the North Sea, Aberdeen is both a university town and the capital of the Scottish oil boom. It is also one of Scotland's largest seaside resorts (though its appeal is confined to those who like their water well-chilled).

The Orange River is the longest river in South Africa and one of the defining natural features of southern Africa.

Founded in the 1st century this ancient city featured prominently in the Silk Road. It is known as the hub of theology and culture in central Asia while still featuring many beautifully preserved historic sites - including the Ark of Bukhara and Samanid Mausoleum.

Tonga is distinctly different to its neighboring island nations. This Polynesian kingdom, made up of 170 islands, carries a proud history that dates back over 3,000 years. On the main island of Tongatapu, travelers can explore ancient stone structures like the Haʻamonga ʻa Maui Trilithon—sometimes called the Stonehenge of the Pacific. Royal tombs in Lapaha offer a glimpse into the lineage of Tonga’s kings, while village life remains guided by customs that have changed little over centuries.

Copán, Honduras, is a hidden gem in Central America that beckons travelers with its extraordinary blend of ancient history, lush landscapes, and vibrant local culture. Known as the "Athens of the Maya," Copán is home to one of the most significant and well-preserved archaeological sites of the Mayan civilization, a UNESCO World Heritage Site.