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).

Chuuk, one of the four states of the Federated States of Micronesia, is best known for its vast lagoon which is one of the largest enclosed lagoons in the world. But what sets Chuuk apart is what lies beneath those calm blue waters: an entire underwater fleet of sunken warships, aircraft, and submarines left from World War II. Often called the "Ghost Fleet of Truk Lagoon," these wrecks make Chuuk a global destination for experienced divers.

Remote, windswept, and bursting with wildlife, South Georgia is a sub-Antarctic island that surprises nearly everyone who steps ashore. Though uninhabited by civilians, the island hosts a small British research station and welcomes visitors via expedition cruises. What draws people here is not luxury or convenience, but the scale of its wildness.

Nestled in the wine-growing region of South Moravia, Valtice, Czech Republic, is a charming town known for its rich history and stunning architecture. The centerpiece of Valtice is the majestic Valtice Castle, a UNESCO World Heritage site that showcases an impressive Baroque façade and beautifully landscaped gardens.

Santa Cruz Island is the beating heart of the Galápagos and is home to the largest town in the archipelago, Puerto Ayora, and a key access point for travelers exploring this unique region. But beyond its small port and shops, the island reveals a surprising range of ecosystems, from black lava shores to lush highlands where giant tortoises roam freely.