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).

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.

San Nicolas, known as Aruba’s “Sunrise City,” offers a completely different vibe from the island’s resort-heavy northwest coast. Located at the southeastern tip, this former oil refinery town has reinvented itself as the cultural heart of Aruba, filled with vibrant street art, local galleries, and a strong sense of community.

A favorite for many cruise-goers and tourists, Ketchikan, Alaska, is a charming city located near the state’s southeastern edge.

Berlin has an undeniable history. The horrors of World War II, division, reunification, revolution all profoundly impacted the city in the 20th century. Today, visitors will find a sophisticated, high-energy city with endless cultural, architectural and gastronomic attractions.