Cardiff, the capital of Wales, is a city brimming with history, culture, and modern vibrancy. At the heart of its historic charm stands the Cardiff Castle, a magnificent structure that dates back to Roman times and has been a centerpiece of Welsh history for centuries. Explore the castle’s stunning medieval architecture and lavish interiors, or take a walk around the castle grounds, which offer picturesque views of the city skyline.

The South Sandwich Islands are among the most remote places on Earth, a chain of volcanic peaks rising from the Southern Ocean, over 1,300 kilometers southeast of South Georgia. With no permanent residents, no ports, and no infrastructure, these islands remain untouched by tourism in the conventional sense. What they offer instead is a rare glimpse into one of the planet’s most extreme and least disturbed environments.

Replete with windmills and old-world charm, the village of Kinderdijk lies east of Rotterdam on the Lek River and is a popular stop for European river cruises. Home to the largest concentration of old windmills in the Netherlands, Kinderdijk was designated a UNESCO World Heritage Site in 1997.

Glenfinnan, nestled in the Scottish Highlands, is a picturesque village renowned for its dramatic landscapes and historical significance. This small but enchanting destination is best known for the Glenfinnan Viaduct, an architectural marvel completed in 1901.

Cairns is the majestic entrance to Australia's Great Barrier Reef. This warm, tropical destination is located in Far North Queensland. Must-see attractions in Cairns include the Tjapukai Aboriginal Cultural Park, which educates tourists about indigenous peoples, and restaurant and bar-dotted Cairns Esplanade, which has a lagoon for swimming.