Murals, painting on wood, sculpture, textiles, clothing, documentary collections, metalwork, objects for the liturgy, etc. The current collection of the Museu Diocesà d'Urgell (Diocesan Museum of Urgell) is a reference point of sacred art in which the Beatus de Liébana particularly stands out, one of only two copies in Catalonia of the work that the Abbot Beat, from the Monastery of Liébana, wrote at the end of the 8th century, commenting on the Book of Revelation.

Curiously, the Museum grew out of a temporary exhibition that took place in 1957 with the pieces from the Cathedral Treasury. Such was the success of the exhibition that it was made permanent and the collection was expanded with pieces from throughout the diocese in the Romanesque, Gothic, Renaissance, Baroque styles and from the 19th century. Among these acquisitions there are treasures such as the Papal Bull of Pope Sylvester II.

In 1969, the Church of la Pietat (annexed to the Cathedral of Santa Maria de la Seu d'Urgell) was adapted to house the Museum. This space brought its own works to the collection such as the Pieta altarpiece and the Dormition group, made by the sculptor Jeroni Xanxo.

One of the most significant works of the collection is El retaule dels Goigs de la Verge (The Altarpiece of the Joys of the Virgin), from Abella de la Conca. It is by Pere Serra and dates from the 14th Century. In addition to its artistic value, it has a history of white-collar theft behind it. It was stolen in 1972 and, after a long journey, was recovered six years later in New York.