Monsummano, as well as being the center of one of the most important Italian footwear districts in the past (from the 1920s and even parts of the 19th century), is a spa town with two natural caves: Grotta Giusti and Grotta Parlanti, the latter recently undergoing renovation following the closure.

Other sights include:
The medieval castle and fortifications.
The elliptical shape have led to suppose a Lombard origin, but the castle is mentioned for the first time in the 11th century.
It was occupied by the Florentines in 1314, but was recaptured one year later by Castruccio Castracani after the battle of Montecatini.
Florence recaptured it in 1331.
Of the castle today several gates and long stretches of the walls, partly covered by vegetation, as well as a single tower, remain.

Church of San Nicolao (12th century), included in the castle.
It houses a 14th- to 15th-century wooden crucifix.

Sanctuary of Maria Santissima della Fontenuova (17th century).
This sanctuary was built in 1602 by the Grand Duke Ferdinand I De Medici and is the located at the heart of Monsummano Terme.
Grand Duke Ferdinand I appointed the construction of the Sanctuary exactly where the miraculous spring appeared.

Church of San Michele e Lorenzo.
It has a lunette painted by Giusto Utens and a Madonna with Child and Saints attributed by some to Piero di Cosimo.

Villa medicea di Montevettolini.
Located in the city of Montevettolini, it was founded around 1600 by architect Gherardo Mechini.

Grotta Giusti, thermal spa and resort
Theater Yves Montand
Trekking and birdwatching site on Monsummano hills next to Grotta Giusti Thermal Spa & Resort
Monsummano, as well as being the center of one of the most important Italian footwear districts in the past (from the 1920s and even parts of the 19th century), is a spa town with two natural caves: Grotta Giusti and Grotta Parlanti, the latter recently undergoing renovation following the closure. 
Other sights include:
The medieval castle and fortifications. The elliptical shape have led to suppose a Lombard origin, but the castle is mentioned for the first time in the 11th century. It was occupied by the Florentines in 1314, but was recaptured one year later by Castruccio Castracani after the battle of Montecatini. Florence recaptured it in 1331. Of the castle today several gates and long stretches of the walls, partly covered by vegetation, as well as a single tower, remain.
Church of San Nicolao (12th century), included in the castle. It houses a 14th- to 15th-century wooden crucifix.
Sanctuary of Maria Santissima della Fontenuova (17th century). This sanctuary was built in 1602 by the Grand Duke Ferdinand I De Medici and is the located at the heart of Monsummano Terme. Grand Duke Ferdinand I appointed the construction of the Sanctuary exactly where the miraculous spring appeared.
Church of San Michele e Lorenzo. It has a lunette painted by Giusto Utens and a Madonna with Child and Saints attributed by some to Piero di Cosimo.
Villa medicea di Montevettolini. Located in the city of Montevettolini, it was founded around 1600 by architect Gherardo Mechini.
Grotta Giusti, thermal spa and resort
Theater Yves Montand
Trekking and birdwatching site on Monsummano hills next to Grotta Giusti Thermal Spa & Resort
Monsummano Terme