The fortified town developed in the 15th century around a castle, though only its beautiful cylindrical tower and a few wall fragments remain. The old Palazzo comunale is today home to the Museum of the High Valley of the Aulella Territory, which contains remains of human settlements in the Lunigiana area dating to the Lower Paleolithic era. The town is well preserved and exudes a suggestive air, vaunting noble palaces, elegant passageways and shops with medieval and Renaissance flair.
Centuries ago, the Ospedale di San Nicolao di Tea was located on the road that connects the Val di Magra to the Garfagnana, a structure that no longer exists today (except for few remains). The building serves as proof of the high number of merchants and pilgrims that once made their way through the area.
In Casola’s surroundings, you can also admire the splendid Romanesque-style parish churches of Santi Cornelio e Cipriano a Codiponte and of San Pietro a Offiano, the former located in an area filled with archeological finds. Be sure to also check out the small but spectacular towns dotting the landscape, like Regnano, Ugliancaldo and Castiglioncello.