Cagliari is Sardinia's capital and largest city. Several civilizations have left their imprint here architecturally and culturally. Must-sees include the Museo Archeologico Nazionale di Cagliari, with its Roman and Byzantine treasures, as well as Castello, a medieval quarter situated on a hill above the city. The city is also known for its food and vibrant nightlife.

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.

The Main River winds through the heart of Germany, offering a scenic journey through picturesque towns, rolling vineyards, and historic cities.

Rarotonga, located in the Cook Islands off the coast of New Zealand, has none of the tourist hype that surrounds Hawaii and Fiji. Its tranquil, aquamarine waters and breathtaking landscape bring many visitors to this island paradise.

The Arctic Ocean, the world's smallest and shallowest ocean, offers a breathtaking and unique adventure for those seeking the grandeur of the polar regions. This icy expanse, bordered by Europe, Asia, and North America, is renowned for its stunning natural beauty and pristine landscapes.