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.

Oman is an independent state extending along the southeastern coast of the Arabian Peninsula. Oman falls naturally into three physical divisions: a narrow coastal plain, ranges of mountains and hills, and an interior plateau.

Hurghada, located on the western shore of the Red Sea, is a vibrant Egyptian city known for its stunning beaches and thriving marine life. As one of Egypt's premier resort destinations, it offers an array of activities for beachgoers and adventure seekers alike. The city's pristine beaches are perfect for relaxing, while the warm, crystal-clear waters invite visitors to dive into a world of colorful coral reefs and diverse marine species.

In Edinburgh, an ancient fortress looms, the hills are steep, and travelers delight in the hidden charms of the Old Town and New Town. Hike to find spectacular views on Arthur's Seat, shop the downhill streets of the Royal Mile, and visit Edinburgh Castle, an imposing royal fortress that defines this city's skyline.

This 2,000-year-old city, where the Teutonic Order founded one of its first commanderies in the 13th century, lies on the convergence of the Moselle and Rhine Rivers.