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.

This canal-laced city is a far cry from its spring break party image of the past. Following renovation and renewal, upscale stores and restaurants have replaced fast-food stands and T-shirt shops.

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.

Stunning coral reefs and turquoise waters perfect for windsurfing have made Hurghada, on Egypt's Red Sea Coast, a busy resort town.