Monsummano is certainly famous for its precious thermal springs, fed with hot waters perfect for beneficial and relaxing baths. The uniqueness that distinguishes this place is relaxation, as well as the Grotta Giusti, an underground gallery located in a centuries-old park and so stunning that it was defined by Giuseppe Verdi as the 8th wonder of the world. Much beloved by the Medici, Monsummano owes more than a few characteristics to this family, starting with Montevettolini. This village, founded as a medieval stronghold, was a favourite place for their hunts, and the noble residences that we see today date to this period. Climbing up here is a must if you want to enjoy a view of the entire valley.
Something else commissioned by the Medici, particularly Grand Duke Ferdinand I, is the Sanctuary of Madonna della Fontenuova, the subject of many tales of miracles. According to legend, a young shepherdess was helped by the Virgin Mary when looking for a herd she had recently lost, and following this, there were many other apparitions, sparking the interest of the faithful. Today, 14 lunettes frescoed in the portico in the 1600s narrate the origins of the sanctuary.
To aid pilgrims during their stop here, the Medici built the Pilgrims' Hospice in the main piazza. Today, the building is home to the Museum of the City and Territory, a museum that reflects on life in Monsummano and in the Valdinievole as a whole, touching upon the changes in the landscape tied to the reclamation work at the Fucecchio Marsh.
Another museum can be found in the 19th-century Villa Martini, which is located near the castle. The villa, which could be considered an enchanting museum in and of itself, with its decorated ceilings and esteemed park, is home to the Museum of Contemporary and 20th-century Art.