Say aloha to tropical breezes, oceanfront luaus and iconic Diamond Head on Oahu, the most populated Hawaiian island. Follow in the sandprints of surfing forefather Duke Kahanamoku on Waikiki Beach, visit the royal quarters of Iolani Palace and tour Pearl Harbor.

A beach-lover's paradise, this Caribbean island's interior boasts desert, but the coasts are filled with picture-perfect, powdery white sand and tranquil sapphire waters.

Strongly influenced by the tribal culture of the Guanches (the original inhabitants), Tenerife was conquered by the Spanish 500 years ago.

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.