Unlike Florence, which is highly commercialized, Pisa is serene and laid-back. Known all over the world for its leaning tower (Torre pendente) and the Campo dei Miracoli, Pisa is however the least known of the Italian cities. A Rennaisance city, that was once a wealthy seaport, welcomes today tourists from all over the world with its Pisan-Romanesque style churches, the Campo Santo (the most beautiful cemetery in the world), trattorias, boutiques and an atmosphere of cultured bohemia.