Securing a table at this upmarket restaurant can be a challenge, so take advantage of your hotel concierge or a local friend to make the booking. Buca Mario does the Florentine classics well, but also seafood—which isn’t as common in the city as you might think. Order a grilled fish or pasta dish (there are gluten-free options) and the gnocchi, which has a sharp, rich gorgonzola sauce. The service is excellent, and don’t be discouraged if you find fellow tourists on either side of you. It’s not that Buca Mario is a tourist trap; it’s just that all the hotels know the food is reliably good and recommend it regularly. Just don’t skip dessert—it comes wheeled out on an old-world trolley, displaying various fruit tarts and tiramisu.