In 1897/98, Adolf Hitler lived in the town of Lambach with his parents and attended the monastery school, where he saw the hakenkreuz used in decorative carving on the stone and woodwork of the building.
It contains the oldest extant Romanesque frescoes in Southern Germany and Austria, and the former abbey tavern, now a pharmacy, with a beautiful Baroque façade.
The abbey's Baroque theatre has also been restored to working order and the summer refectory from the early 18th century by Carlo Antonio Carlone has been converted into a concert hall.
The abbey church was also refurbished in the Baroque style, with an organ by Christoph Egedacher and contains the tomb of Saint Adelbero.
The abbey also possesses the medieval St. Adelbero's Chalice, although it is rarely on view to the public, besides a large collection of sacred art.