The Great Barrier Reef stretches along Australia’s northeast coast, forming the largest coral reef system on Earth and one of the planet’s most complex living ecosystems.

Las Palmas (officially Las Palmas de Gran Canaria) is the capital of Gran Canaria island as well as co-capital (along with Santa Cruz de Tenerife) of the Canary Islands. It is a major cruise-ship port known for duty-free shopping and sandy beaches, including Playa de Las Canteras, considered by many to be one of the best urban beaches worldwide.

St. Thomas, the gateway to the U.S. Virgin Islands, is a vibrant mix of history, culture, and Caribbean charm. Its capital, Charlotte Amalie, features a waterfront lined with pastel-colored colonial buildings, narrow cobblestone streets, and historic forts such as Fort Christian, which offer glimpses into the island’s Danish colonial past.

Ceske Budejovice, the vibrant capital of the South Bohemian Region in the Czech Republic, is a city rich in history and culture. Its most famous landmark is the magnificent Black Tower, offering panoramic views of the city and the surrounding countryside. This 72-meter-tall Gothic tower, completed in the 16th century, is a prime example of the city's architectural heritage source.

Messina sits on the northeastern tip of Sicily, facing the narrow Strait of Messina. Its position has long made it a key port connecting the island to mainland Italy. The city is shaped by its harbor, hillside neighborhoods, and views across the water toward Calabria. Messina stands out for its role as a gateway, with active ferry routes and a layout that blends rebuilt urban areas with historic landmarks and coastal scenery.