Hilly Cincinnati boasts a thriving arts scene, major league sports teams, a world-class zoo and aquarium and a revitalized riverfront with shopping, clubs and restaurants. Located on the Ohio River in southwestern Ohio, Cinci claims more than 4,000 restaurants, and more chili restaurants than any other city in the world. Adrenaline-junkies will want to visit the nearby Kentucky Speedway and Paramount's Kings Island, home of the tallest and fastest wooden roller coaster in the world.

Queens is the most ethnically diverse area of its size on Earth, which means there's a little something for everyone. Chow down on Indian food, sit in on a traditional Irish pub music session, and dance the night away at a Puerto Rican nightclub, all of it located within a few subway stops. Queens is also the home of the Mets and the US Tennis Open, and the former home of the New York World's Fair, now Flushing Meadow-Corona Park, and Paramount Pictures, now the Museum of the Moving Image.

Stretching from the fishing village of Puerto Morelos to the biosphere reserve of Sian Ka'an, the Mayan Riviera offers an unforgettable Caribbean coastline experience. Divers and snorkelers will be dazzled by the wrecks of Xcaret and the Puerto Morelos reef. Use a zip line to descend into the sacred subterranean caverns of LabnaHa Eco Park, where you can snorkel an underground river under a canopy of stalactites. The nearby Tulum Monkey Sanctuary will put you in a playful mood.

You've probably heard that Guinness tastes better in Dublin (fresh from the factory), but what you may not know is that Dublin is a perfect destination for the whole family. No, we're not suggesting you let the kiddies drink a pint. Instead, take them to the Dublin Zoo, to feed the ducks in Stephen's Green or on a picnic in Phoenix Park. Scholars enjoy walking in the literary footsteps of such writers as Yeats and Joyce, while discerning shoppers have their pick of designer boutiques.

So many of Madrid’s buildings look like castles, you’ll think you’ve stumbled into a fairytale. Even City Hall is astounding, with its white pinnacles and neo-Gothic features. A self-guided architecture tour can begin by the great bear statue in the central Puerta del Sol. Wander by the fanciful Royal Palace before absorbing the natural beauty of Retiro Park, then visit one of the city’s many museums. You could happily cap off each day by nibbling on forkfuls of paella while sipping Spanish rioja.