The Antinori family started selling wine from their palace's basement in the 15th century. Six hundred years later, this buca (hole) is a lively, subterranean restaurant filled with Florentine aristocrats chowing down on what might be the best (and most expensive) bistecca fiorentina in town. The classical Tuscan menu has the usual suspects: crostino di cavolo nero (black cabbage on toasted garlic bread), along with ribollita and pappa al pomodoro (two bread-based soups). You might want to cut directly to the chase, however, and order the bistecca, an immense slab of Chianina beef impeccably grilled on the outside, just barely warmed on the inside. (If you're not into rare meat, order something else from the grill.) Roast potatoes and cannellini beans make perfect accompaniments.