Historic and modern, European and Asian — that's Istanbul. The city at the junction of two continents is home to ancient structures like the Hagia Sophia and the Blue Mosque in the Old City, as well as modern businesses, hotels, restaurants and nightlife in the New City.

Corfu refers to both the island and to its main town. Villages of whitewashed houses confetti the sunny isle, two to 15 miles off the Albanian coast.

Bangkok is a city to overload the senses. Streets are crowded by tuk-tuks (motorized tri-shaws) and the occasional elephant weaving through congested traffic.

The Mayan Riviera, Mexico's Caribbean coastline, is more than just the resort town of Playa del Carmen. Stretching from the fishing village of Puerto Morales to the biosphere reserve of Sian Ka'an, the area offers visitors a plethora of both eco-tourism and luxury destinations.