15/08/2026
Mysterium Fidei Valletta: a glimpse behind the walls
Mysterium Fidei is a recently opened underground museum beneath St Catherine's Monastery in Valletta, giving visitors a rare look into the cloistered lives of Augustinian nuns who took vows never to leave....
Discover Mysterium Fidei in Valletta, an underground monastery open to the public for the first time in 400 years.