A typical must-do list for travelers to Italy runs as long as the Appian Way. You must see the Vatican. You must commune with David and the diners at The Last Supper. You must go back in time to 79 A.D. in Pompeii. You must wander around Venice until you get lost. A list can go on and on and on.
Italy offers so many significant things to do, though, that unless you've got a year or two, it's hard to actually do everything. Yet one thing makes on everyone's list: You must eat in Italy. For sustenance, of course, but also because Italy's cuisine is among the most celebrated in the world.