In addition to fossils, various rock samples have been collected from the Monsummano hill. Particular attention has been given to the marbles that, since the Middle Ages, have been used extensively in important buildings, like the red marble used to decorate the Florentine churches of S. Maria del Fiore and S. Maria Novella as well as Pistoia’s Church of Our Lady of Humility and the golden travertine used in the loggia of Monsummano’s Osteria dei Pellegrini.