When we were in Rome recently, we tried the best pizza by the slice which was right next to the Vatican museum. Located at 4 Via delle Grazie, Rome, Lazio, Italy. The shop is called “Alice”. Look out for the pizza a taglio sign. It cost less than 3 euro for a couple of small, yet tasty slices. The best was between eggplant or three cheeses. Mix and match and enjoy the surrounds.