Nine churches were included in the World Heritage Site: Sant Climent and Santa Maria in Taüll, Sant Feliu in Barruera, Sant Joan in Boí, Santa Eulàlia in Erill la Vall, Santa Maria de l'Assumpció de Cóll, Santa Maria de Cardet, la Nativitat de la Mare de Déu in Durro, and the hermitage of Sant Quirc near Durro.
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The valley also contains the ruins of a number of other Romanesque religious buildings, including the churches of Sant Llorenç in Saraís and Santa Martí in Taüll, and the hermitages of Sant Cristòfol in Erill, of Sant Quirc in Taüll, of Sant Salvador in Barruera and of Sant Pere in Boí.