Whether cruising along its waters, exploring historic towns, or simply soaking in the scenic views, the Rhine River offers an experience that is as diverse as the countries it passes through.

Djerba, an enchanting island off the southern coast of Tunisia, is a world of sun, sea, and history. Known as the "Island of a Hundred Mosques," Djerba’s skyline is dotted with minarets rising from whitewashed villages. The town of Houmt Souk, the island’s vibrant capital, is a delightful introduction to Djerba’s blend of cultures and traditions.

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).

The capital of picturesque St. Barthélemy, Gustavia is a veritable island paradise in the Caribbean. A former French colony, this small city on St. Barths’s west coast offers a variety of fine dining, designer shopping, and spectacular beachside activities to ensure a relaxing tropical getaway. Be sure to visit the historic site of Fort Karl for a panoramic view of Gustavia’s glittering harbor, then walk to Shell Beach to take a dip in warm, turquoise waters.

Located northwest of Queenstown, New Zealand, the Milford Sound fiord is a stunning natural landmark in Fiordland National Park popular for its lush, jagged cliffs, cascading waterfalls, and variety of wildlife.