The collection of panel paintings, unique in Europe, is another singular aspect of Romanesque painting, due both to the number and antiquity of the Catalan works conserved (the result of interest in the Romanesque since the late19th century) and to their quality and technical diversity. Particularly outstanding are the frontals of the Apostles (also known as the Frontal of La Seu d'Urgell), Alòs d'Isil, Avià and Cardet, which are rightly considered paradigms of an original pictorial technique, embodying enormous artistic interest. Moreover, the wood carving collection completes this wide-ranging summary of Romanesque art, featuring fine works of different types, such as Virgin of Ger, the Batlló Majesty and the carvings in the Erill la Vall Descent from the Cross.