This charterhouse, built in 1366, is one of the largest monasteries in Tuscany. The Calci Charterhouse, also known as Certosa di Pisa, is a monumental Baroque style building. This monastery was founded in the 15th century thanks to the legacy of an Armenian merchant. The complex features a large courtyard dedicated to the community life and contact with the outside world, a series of buildings hosting the monks' cells, as well as cloisters and gardens. In the monastery there was the prior's apartment, a library, an archive and a pharmacy. The Carthusian monks lived until the seventies, but now the Calci Charterhouse is open to visitors. You can visit it on your own or you can book a guided tour.