Construction began between the late 12th century and the early 13th century
and continued for a considerable time before the building was completed. As the work took so long (estimated at almost 70 years) there is evidence of the influence of two different styles: the Romanesque and the proto-Gothic. It is currently occasionally used for religious services.
Source: http://www.spain.info/en/que-quieres/arte/monumentos/asturias/iglesia_de_sabugo.html
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church, aviles, spain