Mountain views, raucous nightlife and a C-shaped bay with a plethora of beaches make Acapulco a more upscale, yet reasonably priced, escape than its spring-break cousin, Cancun.

The sound of music lures fans both of classical music and of Julie Andrews to Salzburg. Most sights are within walking distance of the city center.

"When in Rome, do as the Romans." That classic advice leads to a wealth of options: Should you follow Augustus and Caesar, whose Rome is filled with spectacular ancient structures? Or Michelangelo and Da Vinci, whose city invites artistic pilgrimage? Maybe you'll discover the Rome that enchants lovers and sightseers alike? Rome encompasses all this and more.

South Beach, or SoBe, is Miami Beach's buzziest bit. The vibrant area, with its pastel-hued buildings, hip nightclubs, trendy shops and see-and-be-seen restaurants, attracts socialites and their satellites year-round.