The monastery museum is situated within the cloister and presents a summary of the abbey's history and its cultural heritage, e.g. Neolithic artifacts and facsimiles of the Millstatt manuscript. The collection also includes a Romanesque shrine from about 1140, a dungeon from the 16th century and a Renaissance chest from the studio of Andrea Mantegna. The cassone once was part of the dowry of Paola Gonzaga, the daughter of Ludovico II of Gonzaga and deceased wife of Count Leonhard of Gorizia, who bequested it to the Order of St. George in 1495.
Since 1981 the "Millstatt Symposium", an academic conference, takes place every year, where researchers discuss different subjects concerning the history of Millstatt and Carinthia.
In summer the "Musikwochen Millstatt" (Millstatt Music Weeks) festival performs various concerts in and around the monastery church including sacred music, choral and classical works as well as jazz, chamber music, piano and organ recitals
