Basilica of San Domenico (Basilica di San Domenico)

The Basilica of San Domenico, one of Siena’s most historically significant churches, is deeply connected to the city’s own Saint Catherine. In 1363, at the age of 15, Catherine took her vows within its walls. The basilica houses several of her relics, including her head, thumb, and the whip she used for self-flagellation. Visitors today can explore this site of profound religious and historical importance, where the tangible presence of Saint Catherine’s life and devotion remains a central focus.