The current Abbot of the Abbey of Casamari, as of 2017, is the Right Reverend Abbot Dom Eugenio Romagnuolo, President of the Cistercian Congregation of Casamari.
The abbey is a fine and very well preserved example of Burgundian early-Gothic architecture (1203-1217), paralleled within Italy only by that of the Abbey of Fossanova. It was declared a National Monument in 1874.
The abbey has a plan similar to the French contemporary ones, the entrance being a gate with a double arch. The interior has a garden whose central part is occupied by a cloister, of quadrangular shape, with four galleries having a semicylindrical ceiling.
The chapter room has nine spans and four pilaster, and is used for meetings. The church can be accessed from the cloister. It has a basilica plan with a nave and two aisles; the façade has a large external portico, while behind the altar is the choir, added in 1954 and made by Vincenzo Domenico De Donatis from Sora (1886-1969) and his sons. The windows of the church are fitted with sheets of alabaster rather than glass panels.