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.

Grand Cayman's splashier side is the real draw. Offering a host of experiences, from petting attention- and food-seeking stingrays at Stingray City to exploring jaw-dropping drop-offs and dive sites, Grand Cayman is a watery wonderland.

Where else are Ernest Hemingway and Jimmy Buffett equally revered? Key West is a sunny, fun destination with enough sights to keep you busy when you're not snorkeling, parasailing or catching some rays.

It's the East Coast's answer to Las Vegas. Atlantic City's casinos draw tourists by the car- and bus-load, but even if your main objective is to play some blackjack, you'll want to save time for sightseeing.