Construction on the Basilica of San Domenico began in 1226 on land donated to the Dominican order by the Malavolti family. The church was subsequently enlarged in the 14^th century giving it roughly the appearance that it has today. Like most mendicant order churches, its large size was intended to accommodate large audiences for the preaching friars. And like most buildings in Siena, the basilica is made of brick. While the basilica does not contain any particularly notable artwork, it is home to Siena’s most important holy relic – the head of St. Catherine of Siena! Buona visita!