Church of l'Assumpció de Cóll Monument · la Vall de Boí, Alta Ribagorça, Lleida The church of Cóll, in the municipality of la Vall de Boí (Alta Ribagorça, Lleida), is officially dedicated to Santa María, although today it is known as the church of the Assumpció. It is a 12th-century Romanesque building, consecrated in 1110, and forms part of the group of Romanesque churches of la Vall de Boí declared a World Heritage Site by UNESCO in 2000. It preserves its original bell tower, doorway and exterior decoration. Photo: Ainhoa from Catalunya (CC BY 2.0) What to see and do in la Vall de Boí