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).

Bonifacio is located at the southernmost tip of the island of Corsica. The town towers above the "Bouches de Bonifacio" the strait between Corsica and Sardinia, above islands and reefs. Bonifacio has survived a unique history, founded in 833, and somehow has defied time and events.

Cumbria, a captivating region in northwest England, is a dream destination for nature lovers, adventure seekers, and history enthusiasts alike. Home to the iconic Lake District National Park, Cumbria is renowned for its breathtaking landscapes of serene lakes, rugged mountains, and charming villages. Visitors can explore the park's famous lakes, like Windermere and Ullswater, on scenic boat rides or venture into the fells for exhilarating hikes.

Tortola, the largest island in the British Virgin Islands, beckons travelers with its idyllic beaches and vibrant culture. Known for its stunning natural beauty, Tortola offers crystal-clear waters, lush landscapes, and a range of outdoor activities. Cane Garden Bay, one of the island’s most famous beaches, is renowned for its powdery white sand and turquoise waters.

Hidden in the northern region of Costa Rica, the Celeste River (Río Celeste) winds through Tenorio Volcano National Park with a color so vivid it seems unreal. The river’s striking turquoise hue is caused by a natural chemical reaction between two mineral-rich streams, Quebrada Agria and Río Buena Vista, which merge at a point known as "El Teñidero." This one-of-a-kind phenomenon creates the illusion that the water has been dyed blue, even though no pigments are present.