Depending on whom you believe, XO is shorthand for either extra old or extra-ordinary and is used in reference to top-shelf brandies, such as Courvoisier's XO Imperial Cognac. Aged between 25 and 35 years in French Limousin-oak casks, the Courvoisier has been called voluptuous, elegant, and subtle. Even before its first birthday, much the same can be said of XO, the restaurant. From its prime location on one of the busiest street corners in one of the city's coolest neighborhoods to its candlelit interior, the restaurant makes a perfect backdrop for Cleveland's Beautiful People. In fact, gliding through the spare, modern space in their evening clothes, the handsome clientele -- including the snazzy-dressing host and-owner, Zdenko Zovkic -- might have just stepped out of a fashion magazine. The menu is equally stylish, full of mascarpone this and truffle-oiled that, and the bar is always well stocked. And when one of the tall Palladian windows captures a perfect view of the glittering skyline . . . well, like that little farm girl with pigtails, you might catch yourself exclaiming, Toto, I don't think were in Cleveland anymore!