The legend over the door reads Castroni Droghe Coloniali, but for years this international food emporium has been known by the single moniker Castroni. Opening its flagship shop near the Vatican in 1932, this gastronomic paradise has long been Rome's port of call for decadent delicacies from around the globe; there are now other locations throughout the city. Jonesing expatriates and study-abroad students pop in for their Fauchon products from Paris, their Twinings teas, or tins of their special smoked Spanish paprika. Travelers will want to stock up on exquisite Italian goodies like Sardinian Bottarga, aromatic Alba white truffles, or their in-house roasted espresso (some of the best coffee in Rome is also served at the bar here). Just be sure to bring an extra suitcase: you will want to buy everything.