Halong Bay, located in northeastern Vietnam, is a stunning UNESCO World Heritage site known for its emerald waters and towering limestone islands. This natural wonder offers a variety of activities for visitors, including cruising, kayaking, snorkeling, and exploring extraordinary caves like the Sung Sot.

Lake Tahoe is one of the most dramatic and beautiful sights in the World. A natural lake formed at the top of the Sierra Nevada mountain range, it is now a winter sports center, a summer vacation destination and the home of wonderful casinos and resorts.

The River Nile, most often associated with Egypt and its ancient civilizations, actually flows through eight other countries including Uganda, Ethiopia, Sudan, and Kenya. It is formed by two major tributaries, the White Nile and Blue Nile, and is considered by many to be the longest river in the world when measured from its source waters in Rwanda and Burundi.

Durango, located in north-central Mexico, is a destination rich in history, dramatic landscapes, and cultural traditions that date back centuries. Once a key outpost during Spanish colonization, Durango played an important role in the development of northern Mexico. The city of Victoria de Durango, the state capital, features cobblestone streets and more than 1,000 officially registered historical structures.

Set in the heart of one of the world's most beautiful bays, Villefranche-sur-Mer sits on the steps of a natural amphitheater - the terraced hills of the Riviera - gazing out over the sea. The plentiful sunshine of the Côte d'Azur, reflected in the enclosed bay, has given Villefranche-sur-Mer a warmth and climate all of its own and its famous rich, exotic vegetation.